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Finding the Fourth Proportional to 48,678.64, 67,171.48 and 35,938.60

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Solution

The fourth proportional to 48,678.64, 67,171.48 and 35,938.60 is: 49,591.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,678.64 : 67,171.48 = 35,938.60 : x
  2. Step 2: Convert to fraction form
    48,678.64/67,171.48 = 35,938.60/x
  3. Step 3: Cross multiply
    48,678.64x = 67,171.48 × 35,938.60
  4. Step 4: Simplify right side
    48,678.64x = 2,414,048,951.13
  5. Step 5: Solve for x
    x = 2,414,048,951.13/48,678.64
  6. Step 6: Final answer
    x = 49,591.54

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1.5x scale

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.