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Finding the Third Proportional to 15,358 and 33,078

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Solution

The third proportional to 15,358 and 33,078 is: 71,243.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,358 : 33,078 = 33,078 : x
  2. Step 2: Convert to fraction form
    15,358/33,078 = 33,078/x
  3. Step 3: Cross multiply
    15,358x = 33,078 × 33,078
  4. Step 4: Simplify right side
    15,358x = 1,094,154,084
  5. Step 5: Solve for x
    x = 1,094,154,084/15,358
  6. Step 6: Final answer
    x = 71,243.27

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.