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Finding the Fourth Proportional to 63,019.32, 86,966.30 and 34,338.96

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Solution

The fourth proportional to 63,019.32, 86,966.30 and 34,338.96 is: 47,387.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,019.32 : 86,966.30 = 34,338.96 : x
  2. Step 2: Convert to fraction form
    63,019.32/86,966.30 = 34,338.96/x
  3. Step 3: Cross multiply
    63,019.32x = 86,966.30 × 34,338.96
  4. Step 4: Simplify right side
    63,019.32x = 2,986,332,297.05
  5. Step 5: Solve for x
    x = 2,986,332,297.05/63,019.32
  6. Step 6: Final answer
    x = 47,387.57

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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.