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Finding the Third Proportional to 58,290 and 125,790

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Solution

The third proportional to 58,290 and 125,790 is: 271,455.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,290 : 125,790 = 125,790 : x
  2. Step 2: Convert to fraction form
    58,290/125,790 = 125,790/x
  3. Step 3: Cross multiply
    58,290x = 125,790 × 125,790
  4. Step 4: Simplify right side
    58,290x = 15,823,124,100
  5. Step 5: Solve for x
    x = 15,823,124,100/58,290
  6. Step 6: Final answer
    x = 271,455.21

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.