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Finding the Third Proportional to 30,362,229 and 66,115,401

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Solution

The third proportional to 30,362,229 and 66,115,401 is: 143,969,872.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,362,229 : 66,115,401 = 66,115,401 : x
  2. Step 2: Convert to fraction form
    30,362,229/66,115,401 = 66,115,401/x
  3. Step 3: Cross multiply
    30,362,229x = 66,115,401 × 66,115,401
  4. Step 4: Simplify right side
    30,362,229x = 4,371,246,249,390,801
  5. Step 5: Solve for x
    x = 4,371,246,249,390,801/30,362,229
  6. Step 6: Final answer
    x = 143,969,872.88

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.