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Finding the Fourth Proportional to 60,715.20, 91,033.20 and 54,494.40

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Solution

The fourth proportional to 60,715.20, 91,033.20 and 54,494.40 is: 81,706.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,715.20 : 91,033.20 = 54,494.40 : x
  2. Step 2: Convert to fraction form
    60,715.20/91,033.20 = 54,494.40/x
  3. Step 3: Cross multiply
    60,715.20x = 91,033.20 × 54,494.40
  4. Step 4: Simplify right side
    60,715.20x = 4,960,799,614.08
  5. Step 5: Solve for x
    x = 4,960,799,614.08/60,715.20
  6. Step 6: Final answer
    x = 81,706.06

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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.