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Finding the Fourth Proportional to 65,776.48, 98,638.80 and 38,093.92

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Solution

The fourth proportional to 65,776.48, 98,638.80 and 38,093.92 is: 57,125.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,776.48 : 98,638.80 = 38,093.92 : x
  2. Step 2: Convert to fraction form
    65,776.48/98,638.80 = 38,093.92/x
  3. Step 3: Cross multiply
    65,776.48x = 98,638.80 × 38,093.92
  4. Step 4: Simplify right side
    65,776.48x = 3,757,538,556.10
  5. Step 5: Solve for x
    x = 3,757,538,556.10/65,776.48
  6. Step 6: Final answer
    x = 57,125.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.