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Finding the Fourth Proportional to 48,535.45, 66,978.78 and 27,314.72

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Solution

The fourth proportional to 48,535.45, 66,978.78 and 27,314.72 is: 37,694.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,535.45 : 66,978.78 = 27,314.72 : x
  2. Step 2: Convert to fraction form
    48,535.45/66,978.78 = 27,314.72/x
  3. Step 3: Cross multiply
    48,535.45x = 66,978.78 × 27,314.72
  4. Step 4: Simplify right side
    48,535.45x = 1,829,506,286.75
  5. Step 5: Solve for x
    x = 1,829,506,286.75/48,535.45
  6. Step 6: Final answer
    x = 37,694.23

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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.