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Finding the Third Proportional to 21,660,879 and 47,572,664

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Solution

The third proportional to 21,660,879 and 47,572,664 is: 104,481,372.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,660,879 : 47,572,664 = 47,572,664 : x
  2. Step 2: Convert to fraction form
    21,660,879/47,572,664 = 47,572,664/x
  3. Step 3: Cross multiply
    21,660,879x = 47,572,664 × 47,572,664
  4. Step 4: Simplify right side
    21,660,879x = 2,263,158,360,056,896
  5. Step 5: Solve for x
    x = 2,263,158,360,056,896/21,660,879
  6. Step 6: Final answer
    x = 104,481,372.16

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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.