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Finding the Fourth Proportional to 40,542.56, 55,948.71 and 22,637.56

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Solution

The fourth proportional to 40,542.56, 55,948.71 and 22,637.56 is: 31,239.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,542.56 : 55,948.71 = 22,637.56 : x
  2. Step 2: Convert to fraction form
    40,542.56/55,948.71 = 22,637.56/x
  3. Step 3: Cross multiply
    40,542.56x = 55,948.71 × 22,637.56
  4. Step 4: Simplify right side
    40,542.56x = 1,266,541,999.80
  5. Step 5: Solve for x
    x = 1,266,541,999.80/40,542.56
  6. Step 6: Final answer
    x = 31,239.81

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1.5x scale

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.