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Finding the Third Proportional to 39,933,740 and 57,066,231

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Solution

The third proportional to 39,933,740 and 57,066,231 is: 81,548,953.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,933,740 : 57,066,231 = 57,066,231 : x
  2. Step 2: Convert to fraction form
    39,933,740/57,066,231 = 57,066,231/x
  3. Step 3: Cross multiply
    39,933,740x = 57,066,231 × 57,066,231
  4. Step 4: Simplify right side
    39,933,740x = 3,256,554,720,545,361
  5. Step 5: Solve for x
    x = 3,256,554,720,545,361/39,933,740
  6. Step 6: Final answer
    x = 81,548,953.86

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.