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Finding the Third Proportional to 13,320,672 and 28,661,376

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Solution

The third proportional to 13,320,672 and 28,661,376 is: 61,669,146.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320,672 : 28,661,376 = 28,661,376 : x
  2. Step 2: Convert to fraction form
    13,320,672/28,661,376 = 28,661,376/x
  3. Step 3: Cross multiply
    13,320,672x = 28,661,376 × 28,661,376
  4. Step 4: Simplify right side
    13,320,672x = 821,474,474,213,376
  5. Step 5: Solve for x
    x = 821,474,474,213,376/13,320,672
  6. Step 6: Final answer
    x = 61,669,146.59

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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.