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Finding the Third Proportional to 5,246 and 12,143

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Solution

The third proportional to 5,246 and 12,143 is: 28,107.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,246 : 12,143 = 12,143 : x
  2. Step 2: Convert to fraction form
    5,246/12,143 = 12,143/x
  3. Step 3: Cross multiply
    5,246x = 12,143 × 12,143
  4. Step 4: Simplify right side
    5,246x = 147,452,449
  5. Step 5: Solve for x
    x = 147,452,449/5,246
  6. Step 6: Final answer
    x = 28,107.60

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.