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Finding the Fourth Proportional to 14,908.65, 22,363.74 and 3,815.44

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Solution

The fourth proportional to 14,908.65, 22,363.74 and 3,815.44 is: 5,723.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,908.65 : 22,363.74 = 3,815.44 : x
  2. Step 2: Convert to fraction form
    14,908.65/22,363.74 = 3,815.44/x
  3. Step 3: Cross multiply
    14,908.65x = 22,363.74 × 3,815.44
  4. Step 4: Simplify right side
    14,908.65x = 85,327,452.24
  5. Step 5: Solve for x
    x = 85,327,452.24/14,908.65
  6. Step 6: Final answer
    x = 5,723.35

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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.