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Finding the Third Proportional to 9,718.50 and 20,923.13

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Solution

The third proportional to 9,718.50 and 20,923.13 is: 45,045.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,718.50 : 20,923.13 = 20,923.13 : x
  2. Step 2: Convert to fraction form
    9,718.50/20,923.13 = 20,923.13/x
  3. Step 3: Cross multiply
    9,718.50x = 20,923.13 × 20,923.13
  4. Step 4: Simplify right side
    9,718.50x = 437,777,159.77
  5. Step 5: Solve for x
    x = 437,777,159.77/9,718.50
  6. Step 6: Final answer
    x = 45,045.75

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.