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Finding the Fourth Proportional to 62,806.60, 86,672.10 and 34,511.68

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Solution

The fourth proportional to 62,806.60, 86,672.10 and 34,511.68 is: 47,625.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,806.60 : 86,672.10 = 34,511.68 : x
  2. Step 2: Convert to fraction form
    62,806.60/86,672.10 = 34,511.68/x
  3. Step 3: Cross multiply
    62,806.60x = 86,672.10 × 34,511.68
  4. Step 4: Simplify right side
    62,806.60x = 2,991,199,346.77
  5. Step 5: Solve for x
    x = 2,991,199,346.77/62,806.60
  6. Step 6: Final answer
    x = 47,625.56

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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.