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Finding the Fourth Proportional to 36,015.27, 53,978.65 and 25,488.28

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Solution

The fourth proportional to 36,015.27, 53,978.65 and 25,488.28 is: 38,201.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,015.27 : 53,978.65 = 25,488.28 : x
  2. Step 2: Convert to fraction form
    36,015.27/53,978.65 = 25,488.28/x
  3. Step 3: Cross multiply
    36,015.27x = 53,978.65 × 25,488.28
  4. Step 4: Simplify right side
    36,015.27x = 1,375,822,948.97
  5. Step 5: Solve for x
    x = 1,375,822,948.97/36,015.27
  6. Step 6: Final answer
    x = 38,201.10

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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.