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Finding the Third Proportional to 3,431,665.50 and 7,319,313

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Solution

The third proportional to 3,431,665.50 and 7,319,313 is: 15,611,178.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431,665.50 : 7,319,313 = 7,319,313 : x
  2. Step 2: Convert to fraction form
    3,431,665.50/7,319,313 = 7,319,313/x
  3. Step 3: Cross multiply
    3,431,665.50x = 7,319,313 × 7,319,313
  4. Step 4: Simplify right side
    3,431,665.50x = 53,572,342,791,969
  5. Step 5: Solve for x
    x = 53,572,342,791,969/3,431,665.50
  6. Step 6: Final answer
    x = 15,611,178.53

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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.