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Finding the Fourth Proportional to 16,651.90, 22,979.78 and 9,098.46

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Solution

The fourth proportional to 16,651.90, 22,979.78 and 9,098.46 is: 12,555.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,651.90 : 22,979.78 = 9,098.46 : x
  2. Step 2: Convert to fraction form
    16,651.90/22,979.78 = 9,098.46/x
  3. Step 3: Cross multiply
    16,651.90x = 22,979.78 × 9,098.46
  4. Step 4: Simplify right side
    16,651.90x = 209,080,609.14
  5. Step 5: Solve for x
    x = 209,080,609.14/16,651.90
  6. Step 6: Final answer
    x = 12,555.96

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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.