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Finding the Third Proportional to 27,861,988 and 43,053,878

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Solution

The third proportional to 27,861,988 and 43,053,878 is: 66,529,222.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,861,988 : 43,053,878 = 43,053,878 : x
  2. Step 2: Convert to fraction form
    27,861,988/43,053,878 = 43,053,878/x
  3. Step 3: Cross multiply
    27,861,988x = 43,053,878 × 43,053,878
  4. Step 4: Simplify right side
    27,861,988x = 1,853,636,410,838,884
  5. Step 5: Solve for x
    x = 1,853,636,410,838,884/27,861,988
  6. Step 6: Final answer
    x = 66,529,222.93

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.