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Finding the Fourth Proportional to 61,748.91, 85,213.17 and 33,454.71

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Solution

The fourth proportional to 61,748.91, 85,213.17 and 33,454.71 is: 46,167.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,748.91 : 85,213.17 = 33,454.71 : x
  2. Step 2: Convert to fraction form
    61,748.91/85,213.17 = 33,454.71/x
  3. Step 3: Cross multiply
    61,748.91x = 85,213.17 × 33,454.71
  4. Step 4: Simplify right side
    61,748.91x = 2,850,781,890.53
  5. Step 5: Solve for x
    x = 2,850,781,890.53/61,748.91
  6. Step 6: Final answer
    x = 46,167.32

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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.