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Finding the Third Proportional to 35,103 and 78,540

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Solution

The third proportional to 35,103 and 78,540 is: 175,726.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,103 : 78,540 = 78,540 : x
  2. Step 2: Convert to fraction form
    35,103/78,540 = 78,540/x
  3. Step 3: Cross multiply
    35,103x = 78,540 × 78,540
  4. Step 4: Simplify right side
    35,103x = 6,168,531,600
  5. Step 5: Solve for x
    x = 6,168,531,600/35,103
  6. Step 6: Final answer
    x = 175,726.62

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Why These Related Problems?

These problems maintain the same ratio (2.24) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.