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Finding the Third Proportional to 21,588,857 and 30,872,319

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Solution

The third proportional to 21,588,857 and 30,872,319 is: 44,147,778.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,588,857 : 30,872,319 = 30,872,319 : x
  2. Step 2: Convert to fraction form
    21,588,857/30,872,319 = 30,872,319/x
  3. Step 3: Cross multiply
    21,588,857x = 30,872,319 × 30,872,319
  4. Step 4: Simplify right side
    21,588,857x = 953,100,080,437,761
  5. Step 5: Solve for x
    x = 953,100,080,437,761/21,588,857
  6. Step 6: Final answer
    x = 44,147,778.66

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.