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Finding the Fourth Proportional to 1,632.26, 2,443.53 and 981.02

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Solution

The fourth proportional to 1,632.26, 2,443.53 and 981.02 is: 1,468.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,632.26 : 2,443.53 = 981.02 : x
  2. Step 2: Convert to fraction form
    1,632.26/2,443.53 = 981.02/x
  3. Step 3: Cross multiply
    1,632.26x = 2,443.53 × 981.02
  4. Step 4: Simplify right side
    1,632.26x = 2,397,151.80
  5. Step 5: Solve for x
    x = 2,397,151.80/1,632.26
  6. Step 6: Final answer
    x = 1,468.61

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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.