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Finding the Fourth Proportional to 61,520.60, 84,910.20 and 36,032.60

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Solution

The fourth proportional to 61,520.60, 84,910.20 and 36,032.60 is: 49,731.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,520.60 : 84,910.20 = 36,032.60 : x
  2. Step 2: Convert to fraction form
    61,520.60/84,910.20 = 36,032.60/x
  3. Step 3: Cross multiply
    61,520.60x = 84,910.20 × 36,032.60
  4. Step 4: Simplify right side
    61,520.60x = 3,059,535,272.52
  5. Step 5: Solve for x
    x = 3,059,535,272.52/61,520.60
  6. Step 6: Final answer
    x = 49,731.88

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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.