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Finding the Fourth Proportional to 16,689, 22,908.10 and 14,758.26

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Solution

The fourth proportional to 16,689, 22,908.10 and 14,758.26 is: 20,257.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,689 : 22,908.10 = 14,758.26 : x
  2. Step 2: Convert to fraction form
    16,689/22,908.10 = 14,758.26/x
  3. Step 3: Cross multiply
    16,689x = 22,908.10 × 14,758.26
  4. Step 4: Simplify right side
    16,689x = 338,083,695.91
  5. Step 5: Solve for x
    x = 338,083,695.91/16,689
  6. Step 6: Final answer
    x = 20,257.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.