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Finding the Fourth Proportional to 62,489.81, 86,235.95 and 34,195.50

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Solution

The fourth proportional to 62,489.81, 86,235.95 and 34,195.50 is: 47,189.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,489.81 : 86,235.95 = 34,195.50 : x
  2. Step 2: Convert to fraction form
    62,489.81/86,235.95 = 34,195.50/x
  3. Step 3: Cross multiply
    62,489.81x = 86,235.95 × 34,195.50
  4. Step 4: Simplify right side
    62,489.81x = 2,948,881,513.71
  5. Step 5: Solve for x
    x = 2,948,881,513.71/62,489.81
  6. Step 6: Final answer
    x = 47,189.80

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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.