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Finding the Fourth Proportional to 63,505.91, 87,642.05 and 35,211.60

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Solution

The fourth proportional to 63,505.91, 87,642.05 and 35,211.60 is: 48,594.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,505.91 : 87,642.05 = 35,211.60 : x
  2. Step 2: Convert to fraction form
    63,505.91/87,642.05 = 35,211.60/x
  3. Step 3: Cross multiply
    63,505.91x = 87,642.05 × 35,211.60
  4. Step 4: Simplify right side
    63,505.91x = 3,086,016,631.72
  5. Step 5: Solve for x
    x = 3,086,016,631.72/63,505.91
  6. Step 6: Final answer
    x = 48,594.17

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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.