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Finding the Fourth Proportional to 62,873.52, 86,765.48 and 34,579.20

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Solution

The fourth proportional to 62,873.52, 86,765.48 and 34,579.20 is: 47,719.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,873.52 : 86,765.48 = 34,579.20 : x
  2. Step 2: Convert to fraction form
    62,873.52/86,765.48 = 34,579.20/x
  3. Step 3: Cross multiply
    62,873.52x = 86,765.48 × 34,579.20
  4. Step 4: Simplify right side
    62,873.52x = 3,000,281,168.16
  5. Step 5: Solve for x
    x = 3,000,281,168.16/62,873.52
  6. Step 6: Final answer
    x = 47,719.32

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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.