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Finding the Third Proportional to 7,958 and 12,548

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Solution

The third proportional to 7,958 and 12,548 is: 19,785.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,958 : 12,548 = 12,548 : x
  2. Step 2: Convert to fraction form
    7,958/12,548 = 12,548/x
  3. Step 3: Cross multiply
    7,958x = 12,548 × 12,548
  4. Step 4: Simplify right side
    7,958x = 157,452,304
  5. Step 5: Solve for x
    x = 157,452,304/7,958
  6. Step 6: Final answer
    x = 19,785.41

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.