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Finding the Fourth Proportional to 63,489.81, 87,615.94 and 35,195.50

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Solution

The fourth proportional to 63,489.81, 87,615.94 and 35,195.50 is: 48,569.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,489.81 : 87,615.94 = 35,195.50 : x
  2. Step 2: Convert to fraction form
    63,489.81/87,615.94 = 35,195.50/x
  3. Step 3: Cross multiply
    63,489.81x = 87,615.94 × 35,195.50
  4. Step 4: Simplify right side
    63,489.81x = 3,083,686,816.27
  5. Step 5: Solve for x
    x = 3,083,686,816.27/63,489.81
  6. Step 6: Final answer
    x = 48,569.79

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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.