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Finding the Third Proportional to 21,543,782 and 47,207,788

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Solution

The third proportional to 21,543,782 and 47,207,788 is: 103,444,012.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,543,782 : 47,207,788 = 47,207,788 : x
  2. Step 2: Convert to fraction form
    21,543,782/47,207,788 = 47,207,788/x
  3. Step 3: Cross multiply
    21,543,782x = 47,207,788 × 47,207,788
  4. Step 4: Simplify right side
    21,543,782x = 2,228,575,247,852,944
  5. Step 5: Solve for x
    x = 2,228,575,247,852,944/21,543,782
  6. Step 6: Final answer
    x = 103,444,012.19

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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.