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Finding the Fourth Proportional to 8,792.64, 13,190.58 and 2,789.19

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Solution

The fourth proportional to 8,792.64, 13,190.58 and 2,789.19 is: 4,184.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,792.64 : 13,190.58 = 2,789.19 : x
  2. Step 2: Convert to fraction form
    8,792.64/13,190.58 = 2,789.19/x
  3. Step 3: Cross multiply
    8,792.64x = 13,190.58 × 2,789.19
  4. Step 4: Simplify right side
    8,792.64x = 36,791,033.83
  5. Step 5: Solve for x
    x = 36,791,033.83/8,792.64
  6. Step 6: Final answer
    x = 4,184.30

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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.