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Finding the Third Proportional to 30,280,608 and 66,423,672

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Solution

The third proportional to 30,280,608 and 66,423,672 is: 145,707,252.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,280,608 : 66,423,672 = 66,423,672 : x
  2. Step 2: Convert to fraction form
    30,280,608/66,423,672 = 66,423,672/x
  3. Step 3: Cross multiply
    30,280,608x = 66,423,672 × 66,423,672
  4. Step 4: Simplify right side
    30,280,608x = 4,412,104,201,963,584
  5. Step 5: Solve for x
    x = 4,412,104,201,963,584/30,280,608
  6. Step 6: Final answer
    x = 145,707,252.71

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.