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Finding the Third Proportional to 9,980.75 and 15,656.75

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Solution

The third proportional to 9,980.75 and 15,656.75 is: 24,560.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,980.75 : 15,656.75 = 15,656.75 : x
  2. Step 2: Convert to fraction form
    9,980.75/15,656.75 = 15,656.75/x
  3. Step 3: Cross multiply
    9,980.75x = 15,656.75 × 15,656.75
  4. Step 4: Simplify right side
    9,980.75x = 245,133,820.56
  5. Step 5: Solve for x
    x = 245,133,820.56/9,980.75
  6. Step 6: Final answer
    x = 24,560.66

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.