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Finding the Third Proportional to 19,112 and 29,520

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Solution

The third proportional to 19,112 and 29,520 is: 45,595.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,112 : 29,520 = 29,520 : x
  2. Step 2: Convert to fraction form
    19,112/29,520 = 29,520/x
  3. Step 3: Cross multiply
    19,112x = 29,520 × 29,520
  4. Step 4: Simplify right side
    19,112x = 871,430,400
  5. Step 5: Solve for x
    x = 871,430,400/19,112
  6. Step 6: Final answer
    x = 45,595.98

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.