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Finding the Fourth Proportional to 10,669.80, 16,023.90 and 10,324.20

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Solution

The fourth proportional to 10,669.80, 16,023.90 and 10,324.20 is: 15,504.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,669.80 : 16,023.90 = 10,324.20 : x
  2. Step 2: Convert to fraction form
    10,669.80/16,023.90 = 10,324.20/x
  3. Step 3: Cross multiply
    10,669.80x = 16,023.90 × 10,324.20
  4. Step 4: Simplify right side
    10,669.80x = 165,433,948.38
  5. Step 5: Solve for x
    x = 165,433,948.38/10,669.80
  6. Step 6: Final answer
    x = 15,504.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.