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Finding the Fourth Proportional to 1,966.79, 2,714.18 and 1,082.61

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Solution

The fourth proportional to 1,966.79, 2,714.18 and 1,082.61 is: 1,494.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,966.79 : 2,714.18 = 1,082.61 : x
  2. Step 2: Convert to fraction form
    1,966.79/2,714.18 = 1,082.61/x
  3. Step 3: Cross multiply
    1,966.79x = 2,714.18 × 1,082.61
  4. Step 4: Simplify right side
    1,966.79x = 2,938,393.00
  5. Step 5: Solve for x
    x = 2,938,393.00/1,966.79
  6. Step 6: Final answer
    x = 1,494.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.