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Finding the Fourth Proportional to 61,151.68, 84,353.56 and 38,454.74

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Solution

The fourth proportional to 61,151.68, 84,353.56 and 38,454.74 is: 53,045.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,151.68 : 84,353.56 = 38,454.74 : x
  2. Step 2: Convert to fraction form
    61,151.68/84,353.56 = 38,454.74/x
  3. Step 3: Cross multiply
    61,151.68x = 84,353.56 × 38,454.74
  4. Step 4: Simplify right side
    61,151.68x = 3,243,794,217.87
  5. Step 5: Solve for x
    x = 3,243,794,217.87/61,151.68
  6. Step 6: Final answer
    x = 53,045.05

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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.