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Finding the Fourth Proportional to 8,476.56, 12,712.01 and 3,545.28

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Solution

The fourth proportional to 8,476.56, 12,712.01 and 3,545.28 is: 5,316.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,476.56 : 12,712.01 = 3,545.28 : x
  2. Step 2: Convert to fraction form
    8,476.56/12,712.01 = 3,545.28/x
  3. Step 3: Cross multiply
    8,476.56x = 12,712.01 × 3,545.28
  4. Step 4: Simplify right side
    8,476.56x = 45,067,617.09
  5. Step 5: Solve for x
    x = 45,067,617.09/8,476.56
  6. Step 6: Final answer
    x = 5,316.73

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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.