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Finding the Fourth Proportional to 62,872.89, 86,766.41 and 34,580.40

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Solution

The fourth proportional to 62,872.89, 86,766.41 and 34,580.40 is: 47,721.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,872.89 : 86,766.41 = 34,580.40 : x
  2. Step 2: Convert to fraction form
    62,872.89/86,766.41 = 34,580.40/x
  3. Step 3: Cross multiply
    62,872.89x = 86,766.41 × 34,580.40
  4. Step 4: Simplify right side
    62,872.89x = 3,000,417,164.36
  5. Step 5: Solve for x
    x = 3,000,417,164.36/62,872.89
  6. Step 6: Final answer
    x = 47,721.95

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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.