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Finding the Third Proportional to 683.44 and 1,123.88

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Solution

The third proportional to 683.44 and 1,123.88 is: 1,848.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    683.44 : 1,123.88 = 1,123.88 : x
  2. Step 2: Convert to fraction form
    683.44/1,123.88 = 1,123.88/x
  3. Step 3: Cross multiply
    683.44x = 1,123.88 × 1,123.88
  4. Step 4: Simplify right side
    683.44x = 1,263,095.02
  5. Step 5: Solve for x
    x = 1,263,095.02/683.44
  6. Step 6: Final answer
    x = 1,848.15

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Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.