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Finding the Fourth Proportional to 22,788.16, 34,158.88 and 8,744.40

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Solution

The fourth proportional to 22,788.16, 34,158.88 and 8,744.40 is: 13,107.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,788.16 : 34,158.88 = 8,744.40 : x
  2. Step 2: Convert to fraction form
    22,788.16/34,158.88 = 8,744.40/x
  3. Step 3: Cross multiply
    22,788.16x = 34,158.88 × 8,744.40
  4. Step 4: Simplify right side
    22,788.16x = 298,698,910.27
  5. Step 5: Solve for x
    x = 298,698,910.27/22,788.16
  6. Step 6: Final answer
    x = 13,107.64

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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.