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Finding the Fourth Proportional to 16,616.97, 22,921.11 and 9,898.02

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Solution

The fourth proportional to 16,616.97, 22,921.11 and 9,898.02 is: 13,653.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,616.97 : 22,921.11 = 9,898.02 : x
  2. Step 2: Convert to fraction form
    16,616.97/22,921.11 = 9,898.02/x
  3. Step 3: Cross multiply
    16,616.97x = 22,921.11 × 9,898.02
  4. Step 4: Simplify right side
    16,616.97x = 226,873,605.20
  5. Step 5: Solve for x
    x = 226,873,605.20/16,616.97
  6. Step 6: Final answer
    x = 13,653.13

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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.