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Finding the Third Proportional to 7,368 and 11,424

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Solution

The third proportional to 7,368 and 11,424 is: 17,712.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,368 : 11,424 = 11,424 : x
  2. Step 2: Convert to fraction form
    7,368/11,424 = 11,424/x
  3. Step 3: Cross multiply
    7,368x = 11,424 × 11,424
  4. Step 4: Simplify right side
    7,368x = 130,507,776
  5. Step 5: Solve for x
    x = 130,507,776/7,368
  6. Step 6: Final answer
    x = 17,712.78

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.