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Finding the Third Proportional to 21,385,476.42 and 43,904,660.06

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Solution

The third proportional to 21,385,476.42 and 43,904,660.06 is: 90,136,835.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,385,476.42 : 43,904,660.06 = 43,904,660.06 : x
  2. Step 2: Convert to fraction form
    21,385,476.42/43,904,660.06 = 43,904,660.06/x
  3. Step 3: Cross multiply
    21,385,476.42x = 43,904,660.06 × 43,904,660.06
  4. Step 4: Simplify right side
    21,385,476.42x = 1,927,619,175,203,682.50
  5. Step 5: Solve for x
    x = 1,927,619,175,203,682.50/21,385,476.42
  6. Step 6: Final answer
    x = 90,136,835.73

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.