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Finding the Third Proportional to 21,881,220 and 47,615,448

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Solution

The third proportional to 21,881,220 and 47,615,448 is: 103,615,378.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,881,220 : 47,615,448 = 47,615,448 : x
  2. Step 2: Convert to fraction form
    21,881,220/47,615,448 = 47,615,448/x
  3. Step 3: Cross multiply
    21,881,220x = 47,615,448 × 47,615,448
  4. Step 4: Simplify right side
    21,881,220x = 2,267,230,888,240,704
  5. Step 5: Solve for x
    x = 2,267,230,888,240,704/21,881,220
  6. Step 6: Final answer
    x = 103,615,378.31

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.