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Finding the Third Proportional to 12,699,772.31 and 27,865,933.88

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Solution

The third proportional to 12,699,772.31 and 27,865,933.88 is: 61,143,637.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,699,772.31 : 27,865,933.88 = 27,865,933.88 : x
  2. Step 2: Convert to fraction form
    12,699,772.31/27,865,933.88 = 27,865,933.88/x
  3. Step 3: Cross multiply
    12,699,772.31x = 27,865,933.88 × 27,865,933.88
  4. Step 4: Simplify right side
    12,699,772.31x = 776,510,270,725,872.50
  5. Step 5: Solve for x
    x = 776,510,270,725,872.50/12,699,772.31
  6. Step 6: Final answer
    x = 61,143,637.19

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.