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Finding the Fourth Proportional to 60,493.48, 90,739.92 and 15,514.64

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Solution

The fourth proportional to 60,493.48, 90,739.92 and 15,514.64 is: 23,271.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,493.48 : 90,739.92 = 15,514.64 : x
  2. Step 2: Convert to fraction form
    60,493.48/90,739.92 = 15,514.64/x
  3. Step 3: Cross multiply
    60,493.48x = 90,739.92 × 15,514.64
  4. Step 4: Simplify right side
    60,493.48x = 1,407,797,093.55
  5. Step 5: Solve for x
    x = 1,407,797,093.55/60,493.48
  6. Step 6: Final answer
    x = 23,271.88

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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.