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Finding the Fourth Proportional to 69,304.32, 95,639.90 and 39,089.57

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Solution

The fourth proportional to 69,304.32, 95,639.90 and 39,089.57 is: 53,943.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,304.32 : 95,639.90 = 39,089.57 : x
  2. Step 2: Convert to fraction form
    69,304.32/95,639.90 = 39,089.57/x
  3. Step 3: Cross multiply
    69,304.32x = 95,639.90 × 39,089.57
  4. Step 4: Simplify right side
    69,304.32x = 3,738,521,892.20
  5. Step 5: Solve for x
    x = 3,738,521,892.20/69,304.32
  6. Step 6: Final answer
    x = 53,943.56

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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.