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Finding the Fourth Proportional to 29,135.52, 43,693.20 and 18,025.20

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Solution

The fourth proportional to 29,135.52, 43,693.20 and 18,025.20 is: 27,031.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,135.52 : 43,693.20 = 18,025.20 : x
  2. Step 2: Convert to fraction form
    29,135.52/43,693.20 = 18,025.20/x
  3. Step 3: Cross multiply
    29,135.52x = 43,693.20 × 18,025.20
  4. Step 4: Simplify right side
    29,135.52x = 787,578,668.64
  5. Step 5: Solve for x
    x = 787,578,668.64/29,135.52
  6. Step 6: Final answer
    x = 27,031.56

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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.