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Finding the Third Proportional to 6,947 and 9,928

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Solution

The third proportional to 6,947 and 9,928 is: 14,188.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,947 : 9,928 = 9,928 : x
  2. Step 2: Convert to fraction form
    6,947/9,928 = 9,928/x
  3. Step 3: Cross multiply
    6,947x = 9,928 × 9,928
  4. Step 4: Simplify right side
    6,947x = 98,565,184
  5. Step 5: Solve for x
    x = 98,565,184/6,947
  6. Step 6: Final answer
    x = 14,188.17

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.