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Finding the Fourth Proportional to 2,681.19, 4,022.16 and 832.44

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Solution

The fourth proportional to 2,681.19, 4,022.16 and 832.44 is: 1,248.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,681.19 : 4,022.16 = 832.44 : x
  2. Step 2: Convert to fraction form
    2,681.19/4,022.16 = 832.44/x
  3. Step 3: Cross multiply
    2,681.19x = 4,022.16 × 832.44
  4. Step 4: Simplify right side
    2,681.19x = 3,348,206.87
  5. Step 5: Solve for x
    x = 3,348,206.87/2,681.19
  6. Step 6: Final answer
    x = 1,248.78

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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.