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Finding the Third Proportional to 3,431,664 and 7,319,310

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Solution

The third proportional to 3,431,664 and 7,319,310 is: 15,611,172.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431,664 : 7,319,310 = 7,319,310 : x
  2. Step 2: Convert to fraction form
    3,431,664/7,319,310 = 7,319,310/x
  3. Step 3: Cross multiply
    3,431,664x = 7,319,310 × 7,319,310
  4. Step 4: Simplify right side
    3,431,664x = 53,572,298,876,100
  5. Step 5: Solve for x
    x = 53,572,298,876,100/3,431,664
  6. Step 6: Final answer
    x = 15,611,172.56

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.