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Finding the Third Proportional to 39,712 and 70,532

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Solution

The third proportional to 39,712 and 70,532 is: 125,271.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,712 : 70,532 = 70,532 : x
  2. Step 2: Convert to fraction form
    39,712/70,532 = 70,532/x
  3. Step 3: Cross multiply
    39,712x = 70,532 × 70,532
  4. Step 4: Simplify right side
    39,712x = 4,974,763,024
  5. Step 5: Solve for x
    x = 4,974,763,024/39,712
  6. Step 6: Final answer
    x = 125,271.03

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.