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Finding the Fourth Proportional to 62,772.57, 86,623.02 and 34,479.27

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Solution

The fourth proportional to 62,772.57, 86,623.02 and 34,479.27 is: 47,579.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,772.57 : 86,623.02 = 34,479.27 : x
  2. Step 2: Convert to fraction form
    62,772.57/86,623.02 = 34,479.27/x
  3. Step 3: Cross multiply
    62,772.57x = 86,623.02 × 34,479.27
  4. Step 4: Simplify right side
    62,772.57x = 2,986,698,494.80
  5. Step 5: Solve for x
    x = 2,986,698,494.80/62,772.57
  6. Step 6: Final answer
    x = 47,579.68

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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.