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Finding the Fourth Proportional to 17,610.20, 26,366.70 and 13,722.20

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Solution

The fourth proportional to 17,610.20, 26,366.70 and 13,722.20 is: 20,545.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,610.20 : 26,366.70 = 13,722.20 : x
  2. Step 2: Convert to fraction form
    17,610.20/26,366.70 = 13,722.20/x
  3. Step 3: Cross multiply
    17,610.20x = 26,366.70 × 13,722.20
  4. Step 4: Simplify right side
    17,610.20x = 361,809,130.74
  5. Step 5: Solve for x
    x = 361,809,130.74/17,610.20
  6. Step 6: Final answer
    x = 20,545.43

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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.