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Finding the Fourth Proportional to 14,882.70, 20,531.07 and 8,913.27

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Solution

The fourth proportional to 14,882.70, 20,531.07 and 8,913.27 is: 12,296.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,882.70 : 20,531.07 = 8,913.27 : x
  2. Step 2: Convert to fraction form
    14,882.70/20,531.07 = 8,913.27/x
  3. Step 3: Cross multiply
    14,882.70x = 20,531.07 × 8,913.27
  4. Step 4: Simplify right side
    14,882.70x = 182,998,970.30
  5. Step 5: Solve for x
    x = 182,998,970.30/14,882.70
  6. Step 6: Final answer
    x = 12,296.09

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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.