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Finding the Third Proportional to 4,232 and 9,890

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Solution

The third proportional to 4,232 and 9,890 is: 23,112.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,232 : 9,890 = 9,890 : x
  2. Step 2: Convert to fraction form
    4,232/9,890 = 9,890/x
  3. Step 3: Cross multiply
    4,232x = 9,890 × 9,890
  4. Step 4: Simplify right side
    4,232x = 97,812,100
  5. Step 5: Solve for x
    x = 97,812,100/4,232
  6. Step 6: Final answer
    x = 23,112.50

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.