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Finding the Fourth Proportional to 4,919.62, 7,360.23 and 3,134.62

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Solution

The fourth proportional to 4,919.62, 7,360.23 and 3,134.62 is: 4,689.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.62 : 7,360.23 = 3,134.62 : x
  2. Step 2: Convert to fraction form
    4,919.62/7,360.23 = 3,134.62/x
  3. Step 3: Cross multiply
    4,919.62x = 7,360.23 × 3,134.62
  4. Step 4: Simplify right side
    4,919.62x = 23,071,524.16
  5. Step 5: Solve for x
    x = 23,071,524.16/4,919.62
  6. Step 6: Final answer
    x = 4,689.70

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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.