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Finding the Fourth Proportional to 40,404.65, 60,610.88 and 13,769.42

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Solution

The fourth proportional to 40,404.65, 60,610.88 and 13,769.42 is: 20,655.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,404.65 : 60,610.88 = 13,769.42 : x
  2. Step 2: Convert to fraction form
    40,404.65/60,610.88 = 13,769.42/x
  3. Step 3: Cross multiply
    40,404.65x = 60,610.88 × 13,769.42
  4. Step 4: Simplify right side
    40,404.65x = 834,576,394.66
  5. Step 5: Solve for x
    x = 834,576,394.66/40,404.65
  6. Step 6: Final answer
    x = 20,655.46

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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.