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Finding the Third Proportional to 824.50 and 1,267

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Solution

The third proportional to 824.50 and 1,267 is: 1,946.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    824.50 : 1,267 = 1,267 : x
  2. Step 2: Convert to fraction form
    824.50/1,267 = 1,267/x
  3. Step 3: Cross multiply
    824.50x = 1,267 × 1,267
  4. Step 4: Simplify right side
    824.50x = 1,605,289
  5. Step 5: Solve for x
    x = 1,605,289/824.50
  6. Step 6: Final answer
    x = 1,946.98

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.