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Finding the Fourth Proportional to 8,614.62, 11,885.99 and 5,257.22

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Solution

The fourth proportional to 8,614.62, 11,885.99 and 5,257.22 is: 7,253.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,614.62 : 11,885.99 = 5,257.22 : x
  2. Step 2: Convert to fraction form
    8,614.62/11,885.99 = 5,257.22/x
  3. Step 3: Cross multiply
    8,614.62x = 11,885.99 × 5,257.22
  4. Step 4: Simplify right side
    8,614.62x = 62,487,178.63
  5. Step 5: Solve for x
    x = 62,487,178.63/8,614.62
  6. Step 6: Final answer
    x = 7,253.62

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Similar ratio
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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.