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Finding the Fourth Proportional to 48,687.89, 67,171.28 and 35,971.70

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Solution

The fourth proportional to 48,687.89, 67,171.28 and 35,971.70 is: 49,627.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,687.89 : 67,171.28 = 35,971.70 : x
  2. Step 2: Convert to fraction form
    48,687.89/67,171.28 = 35,971.70/x
  3. Step 3: Cross multiply
    48,687.89x = 67,171.28 × 35,971.70
  4. Step 4: Simplify right side
    48,687.89x = 2,416,264,617.06
  5. Step 5: Solve for x
    x = 2,416,264,617.06/48,687.89
  6. Step 6: Final answer
    x = 49,627.64

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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.