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Finding the Third Proportional to 21,939,290 and 47,250,205

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Solution

The third proportional to 21,939,290 and 47,250,205 is: 101,761,810.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,939,290 : 47,250,205 = 47,250,205 : x
  2. Step 2: Convert to fraction form
    21,939,290/47,250,205 = 47,250,205/x
  3. Step 3: Cross multiply
    21,939,290x = 47,250,205 × 47,250,205
  4. Step 4: Simplify right side
    21,939,290x = 2,232,581,872,542,025
  5. Step 5: Solve for x
    x = 2,232,581,872,542,025/21,939,290
  6. Step 6: Final answer
    x = 101,761,810.55

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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.