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Finding the Third Proportional to 21,022,179 and 45,186,834

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Solution

The third proportional to 21,022,179 and 45,186,834 is: 97,128,369.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,022,179 : 45,186,834 = 45,186,834 : x
  2. Step 2: Convert to fraction form
    21,022,179/45,186,834 = 45,186,834/x
  3. Step 3: Cross multiply
    21,022,179x = 45,186,834 × 45,186,834
  4. Step 4: Simplify right side
    21,022,179x = 2,041,849,966,943,556
  5. Step 5: Solve for x
    x = 2,041,849,966,943,556/21,022,179
  6. Step 6: Final answer
    x = 97,128,369.37

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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.