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Finding the Fourth Proportional to 64,353.48, 88,793.31 and 38,863.99

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Solution

The fourth proportional to 64,353.48, 88,793.31 and 38,863.99 is: 53,623.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,353.48 : 88,793.31 = 38,863.99 : x
  2. Step 2: Convert to fraction form
    64,353.48/88,793.31 = 38,863.99/x
  3. Step 3: Cross multiply
    64,353.48x = 88,793.31 × 38,863.99
  4. Step 4: Simplify right side
    64,353.48x = 3,450,862,311.91
  5. Step 5: Solve for x
    x = 3,450,862,311.91/64,353.48
  6. Step 6: Final answer
    x = 53,623.55

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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.