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Finding the Fourth Proportional to 64,987.96, 97,481.44 and 26,519.31

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Solution

The fourth proportional to 64,987.96, 97,481.44 and 26,519.31 is: 39,778.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,987.96 : 97,481.44 = 26,519.31 : x
  2. Step 2: Convert to fraction form
    64,987.96/97,481.44 = 26,519.31/x
  3. Step 3: Cross multiply
    64,987.96x = 97,481.44 × 26,519.31
  4. Step 4: Simplify right side
    64,987.96x = 2,585,140,526.61
  5. Step 5: Solve for x
    x = 2,585,140,526.61/64,987.96
  6. Step 6: Final answer
    x = 39,778.76

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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.