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Finding the Fourth Proportional to 63,660.72, 87,818.84 and 43,243.83

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Solution

The fourth proportional to 63,660.72, 87,818.84 and 43,243.83 is: 59,654.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,660.72 : 87,818.84 = 43,243.83 : x
  2. Step 2: Convert to fraction form
    63,660.72/87,818.84 = 43,243.83/x
  3. Step 3: Cross multiply
    63,660.72x = 87,818.84 × 43,243.83
  4. Step 4: Simplify right side
    63,660.72x = 3,797,622,987.76
  5. Step 5: Solve for x
    x = 3,797,622,987.76/63,660.72
  6. Step 6: Final answer
    x = 59,654.10

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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.