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Finding the Fourth Proportional to 17,511.40, 26,331.90 and 14,660.20

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Solution

The fourth proportional to 17,511.40, 26,331.90 and 14,660.20 is: 22,044.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,511.40 : 26,331.90 = 14,660.20 : x
  2. Step 2: Convert to fraction form
    17,511.40/26,331.90 = 14,660.20/x
  3. Step 3: Cross multiply
    17,511.40x = 26,331.90 × 14,660.20
  4. Step 4: Simplify right side
    17,511.40x = 386,030,920.38
  5. Step 5: Solve for x
    x = 386,030,920.38/17,511.40
  6. Step 6: Final answer
    x = 22,044.55

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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.