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Finding the Fourth Proportional to 48,659.30, 72,843.15 and 28,927.70

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Solution

The fourth proportional to 48,659.30, 72,843.15 and 28,927.70 is: 43,304.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,659.30 : 72,843.15 = 28,927.70 : x
  2. Step 2: Convert to fraction form
    48,659.30/72,843.15 = 28,927.70/x
  3. Step 3: Cross multiply
    48,659.30x = 72,843.15 × 28,927.70
  4. Step 4: Simplify right side
    48,659.30x = 2,107,184,790.26
  5. Step 5: Solve for x
    x = 2,107,184,790.26/48,659.30
  6. Step 6: Final answer
    x = 43,304.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.