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Finding the Fourth Proportional to 60,691.95, 83,761.20 and 36,500.76

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Solution

The fourth proportional to 60,691.95, 83,761.20 and 36,500.76 is: 50,374.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,691.95 : 83,761.20 = 36,500.76 : x
  2. Step 2: Convert to fraction form
    60,691.95/83,761.20 = 36,500.76/x
  3. Step 3: Cross multiply
    60,691.95x = 83,761.20 × 36,500.76
  4. Step 4: Simplify right side
    60,691.95x = 3,057,347,458.51
  5. Step 5: Solve for x
    x = 3,057,347,458.51/60,691.95
  6. Step 6: Final answer
    x = 50,374.84

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Double scale
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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.