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Finding the Fourth Proportional to 3,589.62, 5,384.16 and 1,641.72

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Solution

The fourth proportional to 3,589.62, 5,384.16 and 1,641.72 is: 2,462.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,589.62 : 5,384.16 = 1,641.72 : x
  2. Step 2: Convert to fraction form
    3,589.62/5,384.16 = 1,641.72/x
  3. Step 3: Cross multiply
    3,589.62x = 5,384.16 × 1,641.72
  4. Step 4: Simplify right side
    3,589.62x = 8,839,283.16
  5. Step 5: Solve for x
    x = 8,839,283.16/3,589.62
  6. Step 6: Final answer
    x = 2,462.46

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1.5x scale

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.