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Finding the Fourth Proportional to 62,642.61, 86,447.93 and 34,347.96

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Solution

The fourth proportional to 62,642.61, 86,447.93 and 34,347.96 is: 47,400.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,642.61 : 86,447.93 = 34,347.96 : x
  2. Step 2: Convert to fraction form
    62,642.61/86,447.93 = 34,347.96/x
  3. Step 3: Cross multiply
    62,642.61x = 86,447.93 × 34,347.96
  4. Step 4: Simplify right side
    62,642.61x = 2,969,309,869.98
  5. Step 5: Solve for x
    x = 2,969,309,869.98/62,642.61
  6. Step 6: Final answer
    x = 47,400.80

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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.