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Finding the Third Proportional to 9,265 and 13,239

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Solution

The third proportional to 9,265 and 13,239 is: 18,917.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,265 : 13,239 = 13,239 : x
  2. Step 2: Convert to fraction form
    9,265/13,239 = 13,239/x
  3. Step 3: Cross multiply
    9,265x = 13,239 × 13,239
  4. Step 4: Simplify right side
    9,265x = 175,271,121
  5. Step 5: Solve for x
    x = 175,271,121/9,265
  6. Step 6: Final answer
    x = 18,917.55

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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.