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Finding the Third Proportional to 57,420 and 125,532

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Solution

The third proportional to 57,420 and 125,532 is: 274,438.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,420 : 125,532 = 125,532 : x
  2. Step 2: Convert to fraction form
    57,420/125,532 = 125,532/x
  3. Step 3: Cross multiply
    57,420x = 125,532 × 125,532
  4. Step 4: Simplify right side
    57,420x = 15,758,283,024
  5. Step 5: Solve for x
    x = 15,758,283,024/57,420
  6. Step 6: Final answer
    x = 274,438.92

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.