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Finding the Third Proportional to 12,639,963.94 and 19,092,780.56

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Solution

The third proportional to 12,639,963.94 and 19,092,780.56 is: 28,839,818.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,639,963.94 : 19,092,780.56 = 19,092,780.56 : x
  2. Step 2: Convert to fraction form
    12,639,963.94/19,092,780.56 = 19,092,780.56/x
  3. Step 3: Cross multiply
    12,639,963.94x = 19,092,780.56 × 19,092,780.56
  4. Step 4: Simplify right side
    12,639,963.94x = 364,534,269,607,777.81
  5. Step 5: Solve for x
    x = 364,534,269,607,777.81/12,639,963.94
  6. Step 6: Final answer
    x = 28,839,818.80

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.