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Finding the Third Proportional to 15,721,911 and 33,333,366

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Solution

The third proportional to 15,721,911 and 33,333,366 is: 70,672,915.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,721,911 : 33,333,366 = 33,333,366 : x
  2. Step 2: Convert to fraction form
    15,721,911/33,333,366 = 33,333,366/x
  3. Step 3: Cross multiply
    15,721,911x = 33,333,366 × 33,333,366
  4. Step 4: Simplify right side
    15,721,911x = 1,111,113,288,889,956
  5. Step 5: Solve for x
    x = 1,111,113,288,889,956/15,721,911
  6. Step 6: Final answer
    x = 70,672,915.58

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.