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Finding the Third Proportional to 5,031 and 9,810

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Solution

The third proportional to 5,031 and 9,810 is: 19,128.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,031 : 9,810 = 9,810 : x
  2. Step 2: Convert to fraction form
    5,031/9,810 = 9,810/x
  3. Step 3: Cross multiply
    5,031x = 9,810 × 9,810
  4. Step 4: Simplify right side
    5,031x = 96,236,100
  5. Step 5: Solve for x
    x = 96,236,100/5,031
  6. Step 6: Final answer
    x = 19,128.62

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.