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Finding the Third Proportional to 7,332 and 11,280

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Solution

The third proportional to 7,332 and 11,280 is: 17,353.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,332 : 11,280 = 11,280 : x
  2. Step 2: Convert to fraction form
    7,332/11,280 = 11,280/x
  3. Step 3: Cross multiply
    7,332x = 11,280 × 11,280
  4. Step 4: Simplify right side
    7,332x = 127,238,400
  5. Step 5: Solve for x
    x = 127,238,400/7,332
  6. Step 6: Final answer
    x = 17,353.85

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.