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Finding the Fourth Proportional to 2,671.84, 3,687.26 and 1,492.88

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Solution

The fourth proportional to 2,671.84, 3,687.26 and 1,492.88 is: 2,060.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,671.84 : 3,687.26 = 1,492.88 : x
  2. Step 2: Convert to fraction form
    2,671.84/3,687.26 = 1,492.88/x
  3. Step 3: Cross multiply
    2,671.84x = 3,687.26 × 1,492.88
  4. Step 4: Simplify right side
    2,671.84x = 5,504,636.71
  5. Step 5: Solve for x
    x = 5,504,636.71/2,671.84
  6. Step 6: Final answer
    x = 2,060.24

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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.