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Finding the Fourth Proportional to 92,003.63, 138,059 and 38,691.73

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Solution

The fourth proportional to 92,003.63, 138,059 and 38,691.73 is: 58,060.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,003.63 : 138,059 = 38,691.73 : x
  2. Step 2: Convert to fraction form
    92,003.63/138,059 = 38,691.73/x
  3. Step 3: Cross multiply
    92,003.63x = 138,059 × 38,691.73
  4. Step 4: Simplify right side
    92,003.63x = 5,341,741,552.07
  5. Step 5: Solve for x
    x = 5,341,741,552.07/92,003.63
  6. Step 6: Final answer
    x = 58,060.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.