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Finding the Fourth Proportional to 62,579.80, 86,360.25 and 34,285.42

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Solution

The fourth proportional to 62,579.80, 86,360.25 and 34,285.42 is: 47,313.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,579.80 : 86,360.25 = 34,285.42 : x
  2. Step 2: Convert to fraction form
    62,579.80/86,360.25 = 34,285.42/x
  3. Step 3: Cross multiply
    62,579.80x = 86,360.25 × 34,285.42
  4. Step 4: Simplify right side
    62,579.80x = 2,960,897,442.56
  5. Step 5: Solve for x
    x = 2,960,897,442.56/62,579.80
  6. Step 6: Final answer
    x = 47,313.95

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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.