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Finding the Fourth Proportional to 11,874.60, 17,816.40 and 4,480.92

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Solution

The fourth proportional to 11,874.60, 17,816.40 and 4,480.92 is: 6,723.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,874.60 : 17,816.40 = 4,480.92 : x
  2. Step 2: Convert to fraction form
    11,874.60/17,816.40 = 4,480.92/x
  3. Step 3: Cross multiply
    11,874.60x = 17,816.40 × 4,480.92
  4. Step 4: Simplify right side
    11,874.60x = 79,833,863.09
  5. Step 5: Solve for x
    x = 79,833,863.09/11,874.60
  6. Step 6: Final answer
    x = 6,723.08

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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.