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Finding the Third Proportional to 384 and 1,038

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Solution

The third proportional to 384 and 1,038 is: 2,805.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    384 : 1,038 = 1,038 : x
  2. Step 2: Convert to fraction form
    384/1,038 = 1,038/x
  3. Step 3: Cross multiply
    384x = 1,038 × 1,038
  4. Step 4: Simplify right side
    384x = 1,077,444
  5. Step 5: Solve for x
    x = 1,077,444/384
  6. Step 6: Final answer
    x = 2,805.84

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Why These Related Problems?

These problems maintain the same ratio (2.70) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.