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Finding the Fourth Proportional to 60,887.40, 91,484.70 and 38,711.40

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Solution

The fourth proportional to 60,887.40, 91,484.70 and 38,711.40 is: 58,164.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,887.40 : 91,484.70 = 38,711.40 : x
  2. Step 2: Convert to fraction form
    60,887.40/91,484.70 = 38,711.40/x
  3. Step 3: Cross multiply
    60,887.40x = 91,484.70 × 38,711.40
  4. Step 4: Simplify right side
    60,887.40x = 3,541,500,815.58
  5. Step 5: Solve for x
    x = 3,541,500,815.58/60,887.40
  6. Step 6: Final answer
    x = 58,164.76

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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.