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Finding the Third Proportional to 3,915 and 6,066

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Solution

The third proportional to 3,915 and 6,066 is: 9,398.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915 : 6,066 = 6,066 : x
  2. Step 2: Convert to fraction form
    3,915/6,066 = 6,066/x
  3. Step 3: Cross multiply
    3,915x = 6,066 × 6,066
  4. Step 4: Simplify right side
    3,915x = 36,796,356
  5. Step 5: Solve for x
    x = 36,796,356/3,915
  6. Step 6: Final answer
    x = 9,398.81

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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.