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Finding the Third Proportional to 5,186,728 and 11,172,440

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Solution

The third proportional to 5,186,728 and 11,172,440 is: 24,065,926.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186,728 : 11,172,440 = 11,172,440 : x
  2. Step 2: Convert to fraction form
    5,186,728/11,172,440 = 11,172,440/x
  3. Step 3: Cross multiply
    5,186,728x = 11,172,440 × 11,172,440
  4. Step 4: Simplify right side
    5,186,728x = 124,823,415,553,600
  5. Step 5: Solve for x
    x = 124,823,415,553,600/5,186,728
  6. Step 6: Final answer
    x = 24,065,926.64

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.