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Finding the Fourth Proportional to 16,488.60, 22,754.28 and 8,934.99

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Solution

The fourth proportional to 16,488.60, 22,754.28 and 8,934.99 is: 12,330.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,488.60 : 22,754.28 = 8,934.99 : x
  2. Step 2: Convert to fraction form
    16,488.60/22,754.28 = 8,934.99/x
  3. Step 3: Cross multiply
    16,488.60x = 22,754.28 × 8,934.99
  4. Step 4: Simplify right side
    16,488.60x = 203,309,264.26
  5. Step 5: Solve for x
    x = 203,309,264.26/16,488.60
  6. Step 6: Final answer
    x = 12,330.29

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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.