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Finding the Third Proportional to 7,042 and 12,368

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Solution

The third proportional to 7,042 and 12,368 is: 21,722.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,042 : 12,368 = 12,368 : x
  2. Step 2: Convert to fraction form
    7,042/12,368 = 12,368/x
  3. Step 3: Cross multiply
    7,042x = 12,368 × 12,368
  4. Step 4: Simplify right side
    7,042x = 152,967,424
  5. Step 5: Solve for x
    x = 152,967,424/7,042
  6. Step 6: Final answer
    x = 21,722.16

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Why These Related Problems?

These problems maintain the same ratio (1.76) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.