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Finding the Fourth Proportional to 52,140.98, 71,958.71 and 29,484.74

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Solution

The fourth proportional to 52,140.98, 71,958.71 and 29,484.74 is: 40,691.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,140.98 : 71,958.71 = 29,484.74 : x
  2. Step 2: Convert to fraction form
    52,140.98/71,958.71 = 29,484.74/x
  3. Step 3: Cross multiply
    52,140.98x = 71,958.71 × 29,484.74
  4. Step 4: Simplify right side
    52,140.98x = 2,121,684,108.69
  5. Step 5: Solve for x
    x = 2,121,684,108.69/52,140.98
  6. Step 6: Final answer
    x = 40,691.30

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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.