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Finding the Fourth Proportional to 16,658.31, 22,988.07 and 9,104.65

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Solution

The fourth proportional to 16,658.31, 22,988.07 and 9,104.65 is: 12,564.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,658.31 : 22,988.07 = 9,104.65 : x
  2. Step 2: Convert to fraction form
    16,658.31/22,988.07 = 9,104.65/x
  3. Step 3: Cross multiply
    16,658.31x = 22,988.07 × 9,104.65
  4. Step 4: Simplify right side
    16,658.31x = 209,298,331.53
  5. Step 5: Solve for x
    x = 209,298,331.53/16,658.31
  6. Step 6: Final answer
    x = 12,564.20

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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.