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Finding the Fourth Proportional to 60,711.68, 83,752.05 and 40,574.90

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Solution

The fourth proportional to 60,711.68, 83,752.05 and 40,574.90 is: 55,973.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,711.68 : 83,752.05 = 40,574.90 : x
  2. Step 2: Convert to fraction form
    60,711.68/83,752.05 = 40,574.90/x
  3. Step 3: Cross multiply
    60,711.68x = 83,752.05 × 40,574.90
  4. Step 4: Simplify right side
    60,711.68x = 3,398,231,053.55
  5. Step 5: Solve for x
    x = 3,398,231,053.55/60,711.68
  6. Step 6: Final answer
    x = 55,973.27

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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.