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Finding the Fourth Proportional to 18,560.16, 27,845.04 and 6,876.72

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Solution

The fourth proportional to 18,560.16, 27,845.04 and 6,876.72 is: 10,316.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,560.16 : 27,845.04 = 6,876.72 : x
  2. Step 2: Convert to fraction form
    18,560.16/27,845.04 = 6,876.72/x
  3. Step 3: Cross multiply
    18,560.16x = 27,845.04 × 6,876.72
  4. Step 4: Simplify right side
    18,560.16x = 191,482,543.47
  5. Step 5: Solve for x
    x = 191,482,543.47/18,560.16
  6. Step 6: Final answer
    x = 10,316.86

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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.