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Finding the Fourth Proportional to 29,358.40, 43,940.40 and 22,748.80

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Solution

The fourth proportional to 29,358.40, 43,940.40 and 22,748.80 is: 34,047.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,358.40 : 43,940.40 = 22,748.80 : x
  2. Step 2: Convert to fraction form
    29,358.40/43,940.40 = 22,748.80/x
  3. Step 3: Cross multiply
    29,358.40x = 43,940.40 × 22,748.80
  4. Step 4: Simplify right side
    29,358.40x = 999,591,371.52
  5. Step 5: Solve for x
    x = 999,591,371.52/29,358.40
  6. Step 6: Final answer
    x = 34,047.88

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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.