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Finding the Fourth Proportional to 63,565.98, 87,721.83 and 35,274.30

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Solution

The fourth proportional to 63,565.98, 87,721.83 and 35,274.30 is: 48,678.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,565.98 : 87,721.83 = 35,274.30 : x
  2. Step 2: Convert to fraction form
    63,565.98/87,721.83 = 35,274.30/x
  3. Step 3: Cross multiply
    63,565.98x = 87,721.83 × 35,274.30
  4. Step 4: Simplify right side
    63,565.98x = 3,094,326,147.97
  5. Step 5: Solve for x
    x = 3,094,326,147.97/63,565.98
  6. Step 6: Final answer
    x = 48,678.97

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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.