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Finding the Fourth Proportional to 70,062.98, 96,689.03 and 39,852.61

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Solution

The fourth proportional to 70,062.98, 96,689.03 and 39,852.61 is: 54,997.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,062.98 : 96,689.03 = 39,852.61 : x
  2. Step 2: Convert to fraction form
    70,062.98/96,689.03 = 39,852.61/x
  3. Step 3: Cross multiply
    70,062.98x = 96,689.03 × 39,852.61
  4. Step 4: Simplify right side
    70,062.98x = 3,853,309,762.88
  5. Step 5: Solve for x
    x = 3,853,309,762.88/70,062.98
  6. Step 6: Final answer
    x = 54,997.80

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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.