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Finding the Fourth Proportional to 8,298.38, 11,451.78 and 4,572.38

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Solution

The fourth proportional to 8,298.38, 11,451.78 and 4,572.38 is: 6,309.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,298.38 : 11,451.78 = 4,572.38 : x
  2. Step 2: Convert to fraction form
    8,298.38/11,451.78 = 4,572.38/x
  3. Step 3: Cross multiply
    8,298.38x = 11,451.78 × 4,572.38
  4. Step 4: Simplify right side
    8,298.38x = 52,361,832.58
  5. Step 5: Solve for x
    x = 52,361,832.58/8,298.38
  6. Step 6: Final answer
    x = 6,309.89

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Half scale
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Double scale
Find fourth proportional to 8,299.38, 11,453.16 and 4,573.38
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.