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Finding the Fourth Proportional to 22,694.40, 34,041.60 and 13,363.20

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Solution

The fourth proportional to 22,694.40, 34,041.60 and 13,363.20 is: 20,044.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,694.40 : 34,041.60 = 13,363.20 : x
  2. Step 2: Convert to fraction form
    22,694.40/34,041.60 = 13,363.20/x
  3. Step 3: Cross multiply
    22,694.40x = 34,041.60 × 13,363.20
  4. Step 4: Simplify right side
    22,694.40x = 454,904,709.12
  5. Step 5: Solve for x
    x = 454,904,709.12/22,694.40
  6. Step 6: Final answer
    x = 20,044.80

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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.