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Finding the Third Proportional to 35,478 and 77,202

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Solution

The third proportional to 35,478 and 77,202 is: 167,995.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,478 : 77,202 = 77,202 : x
  2. Step 2: Convert to fraction form
    35,478/77,202 = 77,202/x
  3. Step 3: Cross multiply
    35,478x = 77,202 × 77,202
  4. Step 4: Simplify right side
    35,478x = 5,960,148,804
  5. Step 5: Solve for x
    x = 5,960,148,804/35,478
  6. Step 6: Final answer
    x = 167,995.63

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.