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Finding the Third Proportional to 3,664,669.50 and 7,979,931

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Solution

The third proportional to 3,664,669.50 and 7,979,931 is: 17,376,546.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,664,669.50 : 7,979,931 = 7,979,931 : x
  2. Step 2: Convert to fraction form
    3,664,669.50/7,979,931 = 7,979,931/x
  3. Step 3: Cross multiply
    3,664,669.50x = 7,979,931 × 7,979,931
  4. Step 4: Simplify right side
    3,664,669.50x = 63,679,298,764,761
  5. Step 5: Solve for x
    x = 63,679,298,764,761/3,664,669.50
  6. Step 6: Final answer
    x = 17,376,546.17

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.