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Finding the Fourth Proportional to 48,612, 67,082.88 and 27,390

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Solution

The fourth proportional to 48,612, 67,082.88 and 27,390 is: 37,797.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,612 : 67,082.88 = 27,390 : x
  2. Step 2: Convert to fraction form
    48,612/67,082.88 = 27,390/x
  3. Step 3: Cross multiply
    48,612x = 67,082.88 × 27,390
  4. Step 4: Simplify right side
    48,612x = 1,837,400,083.20
  5. Step 5: Solve for x
    x = 1,837,400,083.20/48,612
  6. Step 6: Final answer
    x = 37,797.25

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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.