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Finding the Fourth Proportional to 62,493.65, 86,281.48 and 55,767.72

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Solution

The fourth proportional to 62,493.65, 86,281.48 and 55,767.72 is: 76,995.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,493.65 : 86,281.48 = 55,767.72 : x
  2. Step 2: Convert to fraction form
    62,493.65/86,281.48 = 55,767.72/x
  3. Step 3: Cross multiply
    62,493.65x = 86,281.48 × 55,767.72
  4. Step 4: Simplify right side
    62,493.65x = 4,811,721,163.98
  5. Step 5: Solve for x
    x = 4,811,721,163.98/62,493.65
  6. Step 6: Final answer
    x = 76,995.36

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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.