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Finding the Third Proportional to 3,712 and 9,520

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Solution

The third proportional to 3,712 and 9,520 is: 24,415.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712 : 9,520 = 9,520 : x
  2. Step 2: Convert to fraction form
    3,712/9,520 = 9,520/x
  3. Step 3: Cross multiply
    3,712x = 9,520 × 9,520
  4. Step 4: Simplify right side
    3,712x = 90,630,400
  5. Step 5: Solve for x
    x = 90,630,400/3,712
  6. Step 6: Final answer
    x = 24,415.52

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Why These Related Problems?

These problems maintain the same ratio (2.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.