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Finding the Third Proportional to 11,929,729 and 18,920,571

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Solution

The third proportional to 11,929,729 and 18,920,571 is: 30,008,058.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,929,729 : 18,920,571 = 18,920,571 : x
  2. Step 2: Convert to fraction form
    11,929,729/18,920,571 = 18,920,571/x
  3. Step 3: Cross multiply
    11,929,729x = 18,920,571 × 18,920,571
  4. Step 4: Simplify right side
    11,929,729x = 357,988,006,966,041
  5. Step 5: Solve for x
    x = 357,988,006,966,041/11,929,729
  6. Step 6: Final answer
    x = 30,008,058.60

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.