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Finding the Fourth Proportional to 71,593.17, 98,800.63 and 39,764.12

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Solution

The fourth proportional to 71,593.17, 98,800.63 and 39,764.12 is: 54,875.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,593.17 : 98,800.63 = 39,764.12 : x
  2. Step 2: Convert to fraction form
    71,593.17/98,800.63 = 39,764.12/x
  3. Step 3: Cross multiply
    71,593.17x = 98,800.63 × 39,764.12
  4. Step 4: Simplify right side
    71,593.17x = 3,928,720,069.74
  5. Step 5: Solve for x
    x = 3,928,720,069.74/71,593.17
  6. Step 6: Final answer
    x = 54,875.63

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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.