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Finding the Fourth Proportional to 44,344.80, 66,325.20 and 39,698.40

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Solution

The fourth proportional to 44,344.80, 66,325.20 and 39,698.40 is: 59,375.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,344.80 : 66,325.20 = 39,698.40 : x
  2. Step 2: Convert to fraction form
    44,344.80/66,325.20 = 39,698.40/x
  3. Step 3: Cross multiply
    44,344.80x = 66,325.20 × 39,698.40
  4. Step 4: Simplify right side
    44,344.80x = 2,633,004,319.68
  5. Step 5: Solve for x
    x = 2,633,004,319.68/44,344.80
  6. Step 6: Final answer
    x = 59,375.72

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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.