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Finding the Fourth Proportional to 62,834.71, 86,709.70 and 34,540.19

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Solution

The fourth proportional to 62,834.71, 86,709.70 and 34,540.19 is: 47,664.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,834.71 : 86,709.70 = 34,540.19 : x
  2. Step 2: Convert to fraction form
    62,834.71/86,709.70 = 34,540.19/x
  3. Step 3: Cross multiply
    62,834.71x = 86,709.70 × 34,540.19
  4. Step 4: Simplify right side
    62,834.71x = 2,994,969,772.79
  5. Step 5: Solve for x
    x = 2,994,969,772.79/62,834.71
  6. Step 6: Final answer
    x = 47,664.26

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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.