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Finding the Fourth Proportional to 53,843.88, 80,948.25 and 43,387.26

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Solution

The fourth proportional to 53,843.88, 80,948.25 and 43,387.26 is: 65,227.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,843.88 : 80,948.25 = 43,387.26 : x
  2. Step 2: Convert to fraction form
    53,843.88/80,948.25 = 43,387.26/x
  3. Step 3: Cross multiply
    53,843.88x = 80,948.25 × 43,387.26
  4. Step 4: Simplify right side
    53,843.88x = 3,512,122,769.30
  5. Step 5: Solve for x
    x = 3,512,122,769.30/53,843.88
  6. Step 6: Final answer
    x = 65,227.89

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1.5x scale

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.