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Finding the Third Proportional to 58,440 and 124,980

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Solution

The third proportional to 58,440 and 124,980 is: 267,282.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,440 : 124,980 = 124,980 : x
  2. Step 2: Convert to fraction form
    58,440/124,980 = 124,980/x
  3. Step 3: Cross multiply
    58,440x = 124,980 × 124,980
  4. Step 4: Simplify right side
    58,440x = 15,620,000,400
  5. Step 5: Solve for x
    x = 15,620,000,400/58,440
  6. Step 6: Final answer
    x = 267,282.69

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.