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Finding the Fourth Proportional to 16,616.65, 22,918.02 and 10,648.88

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Solution

The fourth proportional to 16,616.65, 22,918.02 and 10,648.88 is: 14,687.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,616.65 : 22,918.02 = 10,648.88 : x
  2. Step 2: Convert to fraction form
    16,616.65/22,918.02 = 10,648.88/x
  3. Step 3: Cross multiply
    16,616.65x = 22,918.02 × 10,648.88
  4. Step 4: Simplify right side
    16,616.65x = 244,051,244.82
  5. Step 5: Solve for x
    x = 244,051,244.82/16,616.65
  6. Step 6: Final answer
    x = 14,687.15

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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.