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Finding the Third Proportional to 7,878,694.50 and 11,818,040.06

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Solution

The third proportional to 7,878,694.50 and 11,818,040.06 is: 17,727,057.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,878,694.50 : 11,818,040.06 = 11,818,040.06 : x
  2. Step 2: Convert to fraction form
    7,878,694.50/11,818,040.06 = 11,818,040.06/x
  3. Step 3: Cross multiply
    7,878,694.50x = 11,818,040.06 × 11,818,040.06
  4. Step 4: Simplify right side
    7,878,694.50x = 139,666,070,918,855
  5. Step 5: Solve for x
    x = 139,666,070,918,855/7,878,694.50
  6. Step 6: Final answer
    x = 17,727,057.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.