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Finding the Third Proportional to 1,348 and 1,986

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Solution

The third proportional to 1,348 and 1,986 is: 2,925.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348 : 1,986 = 1,986 : x
  2. Step 2: Convert to fraction form
    1,348/1,986 = 1,986/x
  3. Step 3: Cross multiply
    1,348x = 1,986 × 1,986
  4. Step 4: Simplify right side
    1,348x = 3,944,196
  5. Step 5: Solve for x
    x = 3,944,196/1,348
  6. Step 6: Final answer
    x = 2,925.96

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.