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Finding the Fourth Proportional to 63,989.83, 88,305.36 and 35,309.75

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Solution

The fourth proportional to 63,989.83, 88,305.36 and 35,309.75 is: 48,727.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,989.83 : 88,305.36 = 35,309.75 : x
  2. Step 2: Convert to fraction form
    63,989.83/88,305.36 = 35,309.75/x
  3. Step 3: Cross multiply
    63,989.83x = 88,305.36 × 35,309.75
  4. Step 4: Simplify right side
    63,989.83x = 3,118,040,185.26
  5. Step 5: Solve for x
    x = 3,118,040,185.26/63,989.83
  6. Step 6: Final answer
    x = 48,727.12

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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.