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Finding the Fourth Proportional to 1,691.08, 2,532.70 and 996.37

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Solution

The fourth proportional to 1,691.08, 2,532.70 and 996.37 is: 1,492.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,691.08 : 2,532.70 = 996.37 : x
  2. Step 2: Convert to fraction form
    1,691.08/2,532.70 = 996.37/x
  3. Step 3: Cross multiply
    1,691.08x = 2,532.70 × 996.37
  4. Step 4: Simplify right side
    1,691.08x = 2,523,506.30
  5. Step 5: Solve for x
    x = 2,523,506.30/1,691.08
  6. Step 6: Final answer
    x = 1,492.25

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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.