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Finding the Third Proportional to 7,069.88 and 10,969.13

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Solution

The third proportional to 7,069.88 and 10,969.13 is: 17,018.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,069.88 : 10,969.13 = 10,969.13 : x
  2. Step 2: Convert to fraction form
    7,069.88/10,969.13 = 10,969.13/x
  3. Step 3: Cross multiply
    7,069.88x = 10,969.13 × 10,969.13
  4. Step 4: Simplify right side
    7,069.88x = 120,321,703.27
  5. Step 5: Solve for x
    x = 120,321,703.27/7,069.88
  6. Step 6: Final answer
    x = 17,018.93

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.