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Finding the Fourth Proportional to 9,168.52, 13,752.84 and 3,621.64

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Solution

The fourth proportional to 9,168.52, 13,752.84 and 3,621.64 is: 5,432.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,168.52 : 13,752.84 = 3,621.64 : x
  2. Step 2: Convert to fraction form
    9,168.52/13,752.84 = 3,621.64/x
  3. Step 3: Cross multiply
    9,168.52x = 13,752.84 × 3,621.64
  4. Step 4: Simplify right side
    9,168.52x = 49,807,835.46
  5. Step 5: Solve for x
    x = 49,807,835.46/9,168.52
  6. Step 6: Final answer
    x = 5,432.48

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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.