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Finding the Third Proportional to 4,413.38 and 9,715.13

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Solution

The third proportional to 4,413.38 and 9,715.13 is: 21,385.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,413.38 : 9,715.13 = 9,715.13 : x
  2. Step 2: Convert to fraction form
    4,413.38/9,715.13 = 9,715.13/x
  3. Step 3: Cross multiply
    4,413.38x = 9,715.13 × 9,715.13
  4. Step 4: Simplify right side
    4,413.38x = 94,383,653.77
  5. Step 5: Solve for x
    x = 94,383,653.77/4,413.38
  6. Step 6: Final answer
    x = 21,385.82

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.