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Finding the Fourth Proportional to 48,389.72, 66,791.72 and 29,269.52

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Solution

The fourth proportional to 48,389.72, 66,791.72 and 29,269.52 is: 40,400.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,389.72 : 66,791.72 = 29,269.52 : x
  2. Step 2: Convert to fraction form
    48,389.72/66,791.72 = 29,269.52/x
  3. Step 3: Cross multiply
    48,389.72x = 66,791.72 × 29,269.52
  4. Step 4: Simplify right side
    48,389.72x = 1,954,961,584.37
  5. Step 5: Solve for x
    x = 1,954,961,584.37/48,389.72
  6. Step 6: Final answer
    x = 40,400.35

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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.