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Finding the Fourth Proportional to 40,375.56, 55,719.18 and 22,472.40

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Solution

The fourth proportional to 40,375.56, 55,719.18 and 22,472.40 is: 31,012.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,375.56 : 55,719.18 = 22,472.40 : x
  2. Step 2: Convert to fraction form
    40,375.56/55,719.18 = 22,472.40/x
  3. Step 3: Cross multiply
    40,375.56x = 55,719.18 × 22,472.40
  4. Step 4: Simplify right side
    40,375.56x = 1,252,143,700.63
  5. Step 5: Solve for x
    x = 1,252,143,700.63/40,375.56
  6. Step 6: Final answer
    x = 31,012.42

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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.