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Finding the Fourth Proportional to 48,161.88, 66,460.80 and 28,015.56

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Solution

The fourth proportional to 48,161.88, 66,460.80 and 28,015.56 is: 38,659.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,161.88 : 66,460.80 = 28,015.56 : x
  2. Step 2: Convert to fraction form
    48,161.88/66,460.80 = 28,015.56/x
  3. Step 3: Cross multiply
    48,161.88x = 66,460.80 × 28,015.56
  4. Step 4: Simplify right side
    48,161.88x = 1,861,936,530.05
  5. Step 5: Solve for x
    x = 1,861,936,530.05/48,161.88
  6. Step 6: Final answer
    x = 38,659.96

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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.