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Finding the Third Proportional to 12,368 and 13,328

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Solution

The third proportional to 12,368 and 13,328 is: 14,362.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,368 : 13,328 = 13,328 : x
  2. Step 2: Convert to fraction form
    12,368/13,328 = 13,328/x
  3. Step 3: Cross multiply
    12,368x = 13,328 × 13,328
  4. Step 4: Simplify right side
    12,368x = 177,635,584
  5. Step 5: Solve for x
    x = 177,635,584/12,368
  6. Step 6: Final answer
    x = 14,362.51

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.