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Finding the Fourth Proportional to 49,323.78, 67,748.87 and 48,378.13

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Solution

The fourth proportional to 49,323.78, 67,748.87 and 48,378.13 is: 66,449.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,323.78 : 67,748.87 = 48,378.13 : x
  2. Step 2: Convert to fraction form
    49,323.78/67,748.87 = 48,378.13/x
  3. Step 3: Cross multiply
    49,323.78x = 67,748.87 × 48,378.13
  4. Step 4: Simplify right side
    49,323.78x = 3,277,563,591.79
  5. Step 5: Solve for x
    x = 3,277,563,591.79/49,323.78
  6. Step 6: Final answer
    x = 66,449.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.