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Finding the Fourth Proportional to 7,543.99, 11,315.98 and 4,788.37

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Solution

The fourth proportional to 7,543.99, 11,315.98 and 4,788.37 is: 7,182.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,543.99 : 11,315.98 = 4,788.37 : x
  2. Step 2: Convert to fraction form
    7,543.99/11,315.98 = 4,788.37/x
  3. Step 3: Cross multiply
    7,543.99x = 11,315.98 × 4,788.37
  4. Step 4: Simplify right side
    7,543.99x = 54,185,042.57
  5. Step 5: Solve for x
    x = 54,185,042.57/7,543.99
  6. Step 6: Final answer
    x = 7,182.55

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.