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Finding the Third Proportional to 15,974,476 and 34,989,689

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Solution

The third proportional to 15,974,476 and 34,989,689 is: 76,639,655.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,974,476 : 34,989,689 = 34,989,689 : x
  2. Step 2: Convert to fraction form
    15,974,476/34,989,689 = 34,989,689/x
  3. Step 3: Cross multiply
    15,974,476x = 34,989,689 × 34,989,689
  4. Step 4: Simplify right side
    15,974,476x = 1,224,278,336,316,721
  5. Step 5: Solve for x
    x = 1,224,278,336,316,721/15,974,476
  6. Step 6: Final answer
    x = 76,639,655.43

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.