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Finding the Fourth Proportional to 69,351.84, 103,987.62 and 27,182.64

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Solution

The fourth proportional to 69,351.84, 103,987.62 and 27,182.64 is: 40,758.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,351.84 : 103,987.62 = 27,182.64 : x
  2. Step 2: Convert to fraction form
    69,351.84/103,987.62 = 27,182.64/x
  3. Step 3: Cross multiply
    69,351.84x = 103,987.62 × 27,182.64
  4. Step 4: Simplify right side
    69,351.84x = 2,826,658,038.92
  5. Step 5: Solve for x
    x = 2,826,658,038.92/69,351.84
  6. Step 6: Final answer
    x = 40,758.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.