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Finding the Fourth Proportional to 47,310.90, 70,901.55 and 38,562.90

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Solution

The fourth proportional to 47,310.90, 70,901.55 and 38,562.90 is: 57,791.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,310.90 : 70,901.55 = 38,562.90 : x
  2. Step 2: Convert to fraction form
    47,310.90/70,901.55 = 38,562.90/x
  3. Step 3: Cross multiply
    47,310.90x = 70,901.55 × 38,562.90
  4. Step 4: Simplify right side
    47,310.90x = 2,734,169,382.50
  5. Step 5: Solve for x
    x = 2,734,169,382.50/47,310.90
  6. Step 6: Final answer
    x = 57,791.53

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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.