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Finding the Third Proportional to 892.75 and 1,307

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Solution

The third proportional to 892.75 and 1,307 is: 1,913.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    892.75 : 1,307 = 1,307 : x
  2. Step 2: Convert to fraction form
    892.75/1,307 = 1,307/x
  3. Step 3: Cross multiply
    892.75x = 1,307 × 1,307
  4. Step 4: Simplify right side
    892.75x = 1,708,249
  5. Step 5: Solve for x
    x = 1,708,249/892.75
  6. Step 6: Final answer
    x = 1,913.47

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.