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Finding the Fourth Proportional to 12,460.73, 18,691.14 and 3,695.72

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Solution

The fourth proportional to 12,460.73, 18,691.14 and 3,695.72 is: 5,543.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,460.73 : 18,691.14 = 3,695.72 : x
  2. Step 2: Convert to fraction form
    12,460.73/18,691.14 = 3,695.72/x
  3. Step 3: Cross multiply
    12,460.73x = 18,691.14 × 3,695.72
  4. Step 4: Simplify right side
    12,460.73x = 69,077,219.92
  5. Step 5: Solve for x
    x = 69,077,219.92/12,460.73
  6. Step 6: Final answer
    x = 5,543.59

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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.