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Finding the Fourth Proportional to 40,542.50, 55,932.98 and 25,428.98

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Solution

The fourth proportional to 40,542.50, 55,932.98 and 25,428.98 is: 35,082.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,542.50 : 55,932.98 = 25,428.98 : x
  2. Step 2: Convert to fraction form
    40,542.50/55,932.98 = 25,428.98/x
  3. Step 3: Cross multiply
    40,542.50x = 55,932.98 × 25,428.98
  4. Step 4: Simplify right side
    40,542.50x = 1,422,318,629.76
  5. Step 5: Solve for x
    x = 1,422,318,629.76/40,542.50
  6. Step 6: Final answer
    x = 35,082.16

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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.