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Finding the Fourth Proportional to 26,367.90, 36,385.87 and 15,037.87

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Solution

The fourth proportional to 26,367.90, 36,385.87 and 15,037.87 is: 20,751.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,367.90 : 36,385.87 = 15,037.87 : x
  2. Step 2: Convert to fraction form
    26,367.90/36,385.87 = 15,037.87/x
  3. Step 3: Cross multiply
    26,367.90x = 36,385.87 × 15,037.87
  4. Step 4: Simplify right side
    26,367.90x = 547,165,945.30
  5. Step 5: Solve for x
    x = 547,165,945.30/26,367.90
  6. Step 6: Final answer
    x = 20,751.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.