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Finding the Fourth Proportional to 8,787.64, 13,182.62 and 3,244.88

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Solution

The fourth proportional to 8,787.64, 13,182.62 and 3,244.88 is: 4,867.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787.64 : 13,182.62 = 3,244.88 : x
  2. Step 2: Convert to fraction form
    8,787.64/13,182.62 = 3,244.88/x
  3. Step 3: Cross multiply
    8,787.64x = 13,182.62 × 3,244.88
  4. Step 4: Simplify right side
    8,787.64x = 42,776,019.99
  5. Step 5: Solve for x
    x = 42,776,019.99/8,787.64
  6. Step 6: Final answer
    x = 4,867.75

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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.