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Finding the Third Proportional to 7,122 and 15,276

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Solution

The third proportional to 7,122 and 15,276 is: 32,765.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122 : 15,276 = 15,276 : x
  2. Step 2: Convert to fraction form
    7,122/15,276 = 15,276/x
  3. Step 3: Cross multiply
    7,122x = 15,276 × 15,276
  4. Step 4: Simplify right side
    7,122x = 233,356,176
  5. Step 5: Solve for x
    x = 233,356,176/7,122
  6. Step 6: Final answer
    x = 32,765.54

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.