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Finding the Fourth Proportional to 4,908.53, 7,363.02 and 1,621.55

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Solution

The fourth proportional to 4,908.53, 7,363.02 and 1,621.55 is: 2,432.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,908.53 : 7,363.02 = 1,621.55 : x
  2. Step 2: Convert to fraction form
    4,908.53/7,363.02 = 1,621.55/x
  3. Step 3: Cross multiply
    4,908.53x = 7,363.02 × 1,621.55
  4. Step 4: Simplify right side
    4,908.53x = 11,939,468.27
  5. Step 5: Solve for x
    x = 11,939,468.27/4,908.53
  6. Step 6: Final answer
    x = 2,432.39

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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.