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Finding the Fourth Proportional to 8,634.56, 12,952.28 and 3,700.76

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Solution

The fourth proportional to 8,634.56, 12,952.28 and 3,700.76 is: 5,551.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,634.56 : 12,952.28 = 3,700.76 : x
  2. Step 2: Convert to fraction form
    8,634.56/12,952.28 = 3,700.76/x
  3. Step 3: Cross multiply
    8,634.56x = 12,952.28 × 3,700.76
  4. Step 4: Simplify right side
    8,634.56x = 47,933,279.73
  5. Step 5: Solve for x
    x = 47,933,279.73/8,634.56
  6. Step 6: Final answer
    x = 5,551.33

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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.