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Finding the Fourth Proportional to 16,974.76, 23,425.18 and 9,421.09

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Solution

The fourth proportional to 16,974.76, 23,425.18 and 9,421.09 is: 13,001.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,974.76 : 23,425.18 = 9,421.09 : x
  2. Step 2: Convert to fraction form
    16,974.76/23,425.18 = 9,421.09/x
  3. Step 3: Cross multiply
    16,974.76x = 23,425.18 × 9,421.09
  4. Step 4: Simplify right side
    16,974.76x = 220,690,778.70
  5. Step 5: Solve for x
    x = 220,690,778.70/16,974.76
  6. Step 6: Final answer
    x = 13,001.11

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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.