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Finding the Fourth Proportional to 63,717, 87,821.08 and 43,538.86

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Solution

The fourth proportional to 63,717, 87,821.08 and 43,538.86 is: 60,009.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,717 : 87,821.08 = 43,538.86 : x
  2. Step 2: Convert to fraction form
    63,717/87,821.08 = 43,538.86/x
  3. Step 3: Cross multiply
    63,717x = 87,821.08 × 43,538.86
  4. Step 4: Simplify right side
    63,717x = 3,823,629,707.17
  5. Step 5: Solve for x
    x = 3,823,629,707.17/63,717
  6. Step 6: Final answer
    x = 60,009.57

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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.