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Finding the Third Proportional to 28,420,013 and 62,508,730

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Solution

The third proportional to 28,420,013 and 62,508,730 is: 137,485,557.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,420,013 : 62,508,730 = 62,508,730 : x
  2. Step 2: Convert to fraction form
    28,420,013/62,508,730 = 62,508,730/x
  3. Step 3: Cross multiply
    28,420,013x = 62,508,730 × 62,508,730
  4. Step 4: Simplify right side
    28,420,013x = 3,907,341,326,212,900
  5. Step 5: Solve for x
    x = 3,907,341,326,212,900/28,420,013
  6. Step 6: Final answer
    x = 137,485,557.32

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.