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Finding the Fourth Proportional to 8,787.60, 13,169.64 and 4,832.92

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Solution

The fourth proportional to 8,787.60, 13,169.64 and 4,832.92 is: 7,242.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787.60 : 13,169.64 = 4,832.92 : x
  2. Step 2: Convert to fraction form
    8,787.60/13,169.64 = 4,832.92/x
  3. Step 3: Cross multiply
    8,787.60x = 13,169.64 × 4,832.92
  4. Step 4: Simplify right side
    8,787.60x = 63,647,816.55
  5. Step 5: Solve for x
    x = 63,647,816.55/8,787.60
  6. Step 6: Final answer
    x = 7,242.91

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1.5x scale

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.