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Finding the Fourth Proportional to 8,325.87, 11,488.65 and 4,741.29

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Solution

The fourth proportional to 8,325.87, 11,488.65 and 4,741.29 is: 6,542.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,325.87 : 11,488.65 = 4,741.29 : x
  2. Step 2: Convert to fraction form
    8,325.87/11,488.65 = 4,741.29/x
  3. Step 3: Cross multiply
    8,325.87x = 11,488.65 × 4,741.29
  4. Step 4: Simplify right side
    8,325.87x = 54,471,021.36
  5. Step 5: Solve for x
    x = 54,471,021.36/8,325.87
  6. Step 6: Final answer
    x = 6,542.38

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Find fourth proportional to 4,162.94, 5,744.33 and 2,370.65
Half scale
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Double scale
Find fourth proportional to 8,326.87, 11,490.03 and 4,742.29
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.