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Finding the Third Proportional to 9,720 and 14,577.25

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Solution

The third proportional to 9,720 and 14,577.25 is: 21,861.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,720 : 14,577.25 = 14,577.25 : x
  2. Step 2: Convert to fraction form
    9,720/14,577.25 = 14,577.25/x
  3. Step 3: Cross multiply
    9,720x = 14,577.25 × 14,577.25
  4. Step 4: Simplify right side
    9,720x = 212,496,217.56
  5. Step 5: Solve for x
    x = 212,496,217.56/9,720
  6. Step 6: Final answer
    x = 21,861.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.