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Finding the Fourth Proportional to 44,928, 67,345.92 and 18,648

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Solution

The fourth proportional to 44,928, 67,345.92 and 18,648 is: 27,952.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,928 : 67,345.92 = 18,648 : x
  2. Step 2: Convert to fraction form
    44,928/67,345.92 = 18,648/x
  3. Step 3: Cross multiply
    44,928x = 67,345.92 × 18,648
  4. Step 4: Simplify right side
    44,928x = 1,255,866,716.16
  5. Step 5: Solve for x
    x = 1,255,866,716.16/44,928
  6. Step 6: Final answer
    x = 27,952.87

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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.