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Finding the Fourth Proportional to 5,279.96, 7,919.96 and 4,670.84

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Solution

The fourth proportional to 5,279.96, 7,919.96 and 4,670.84 is: 7,006.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.96 : 7,919.96 = 4,670.84 : x
  2. Step 2: Convert to fraction form
    5,279.96/7,919.96 = 4,670.84/x
  3. Step 3: Cross multiply
    5,279.96x = 7,919.96 × 4,670.84
  4. Step 4: Simplify right side
    5,279.96x = 36,992,865.97
  5. Step 5: Solve for x
    x = 36,992,865.97/5,279.96
  6. Step 6: Final answer
    x = 7,006.28

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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.