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Finding the Fourth Proportional to 22,735.20, 34,045.20 and 18,127.20

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Solution

The fourth proportional to 22,735.20, 34,045.20 and 18,127.20 is: 27,144.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,735.20 : 34,045.20 = 18,127.20 : x
  2. Step 2: Convert to fraction form
    22,735.20/34,045.20 = 18,127.20/x
  3. Step 3: Cross multiply
    22,735.20x = 34,045.20 × 18,127.20
  4. Step 4: Simplify right side
    22,735.20x = 617,144,149.44
  5. Step 5: Solve for x
    x = 617,144,149.44/22,735.20
  6. Step 6: Final answer
    x = 27,144.87

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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.