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Finding the Fourth Proportional to 47,712.88, 65,841.78 and 26,490.88

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Solution

The fourth proportional to 47,712.88, 65,841.78 and 26,490.88 is: 36,556.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,712.88 : 65,841.78 = 26,490.88 : x
  2. Step 2: Convert to fraction form
    47,712.88/65,841.78 = 26,490.88/x
  3. Step 3: Cross multiply
    47,712.88x = 65,841.78 × 26,490.88
  4. Step 4: Simplify right side
    47,712.88x = 1,744,206,692.97
  5. Step 5: Solve for x
    x = 1,744,206,692.97/47,712.88
  6. Step 6: Final answer
    x = 36,556.31

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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.