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Finding the Third Proportional to 12,312 and 17,612

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Solution

The third proportional to 12,312 and 17,612 is: 25,193.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,312 : 17,612 = 17,612 : x
  2. Step 2: Convert to fraction form
    12,312/17,612 = 17,612/x
  3. Step 3: Cross multiply
    12,312x = 17,612 × 17,612
  4. Step 4: Simplify right side
    12,312x = 310,182,544
  5. Step 5: Solve for x
    x = 310,182,544/12,312
  6. Step 6: Final answer
    x = 25,193.51

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.