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Finding the Fourth Proportional to 63,035.88, 86,990.08 and 34,742.56

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Solution

The fourth proportional to 63,035.88, 86,990.08 and 34,742.56 is: 47,945.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,035.88 : 86,990.08 = 34,742.56 : x
  2. Step 2: Convert to fraction form
    63,035.88/86,990.08 = 34,742.56/x
  3. Step 3: Cross multiply
    63,035.88x = 86,990.08 × 34,742.56
  4. Step 4: Simplify right side
    63,035.88x = 3,022,258,073.80
  5. Step 5: Solve for x
    x = 3,022,258,073.80/63,035.88
  6. Step 6: Final answer
    x = 47,945.04

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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.