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Finding the Fourth Proportional to 8,787.80, 13,182.02 and 2,632.28

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Solution

The fourth proportional to 8,787.80, 13,182.02 and 2,632.28 is: 3,948.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787.80 : 13,182.02 = 2,632.28 : x
  2. Step 2: Convert to fraction form
    8,787.80/13,182.02 = 2,632.28/x
  3. Step 3: Cross multiply
    8,787.80x = 13,182.02 × 2,632.28
  4. Step 4: Simplify right side
    8,787.80x = 34,698,767.61
  5. Step 5: Solve for x
    x = 34,698,767.61/8,787.80
  6. Step 6: Final answer
    x = 3,948.52

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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.