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Finding the Fourth Proportional to 53,691.47, 80,476.44 and 27,340.55

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Solution

The fourth proportional to 53,691.47, 80,476.44 and 27,340.55 is: 40,979.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,691.47 : 80,476.44 = 27,340.55 : x
  2. Step 2: Convert to fraction form
    53,691.47/80,476.44 = 27,340.55/x
  3. Step 3: Cross multiply
    53,691.47x = 80,476.44 × 27,340.55
  4. Step 4: Simplify right side
    53,691.47x = 2,200,270,131.64
  5. Step 5: Solve for x
    x = 2,200,270,131.64/53,691.47
  6. Step 6: Final answer
    x = 40,979.88

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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.