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Finding the Third Proportional to 21,197,473 and 45,916,350

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Solution

The third proportional to 21,197,473 and 45,916,350 is: 99,460,496.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,197,473 : 45,916,350 = 45,916,350 : x
  2. Step 2: Convert to fraction form
    21,197,473/45,916,350 = 45,916,350/x
  3. Step 3: Cross multiply
    21,197,473x = 45,916,350 × 45,916,350
  4. Step 4: Simplify right side
    21,197,473x = 2,108,311,197,322,500
  5. Step 5: Solve for x
    x = 2,108,311,197,322,500/21,197,473
  6. Step 6: Final answer
    x = 99,460,496.89

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.