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Finding the Third Proportional to 3,975,555.94 and 8,732,121.47

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Solution

The third proportional to 3,975,555.94 and 8,732,121.47 is: 19,179,693.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975,555.94 : 8,732,121.47 = 8,732,121.47 : x
  2. Step 2: Convert to fraction form
    3,975,555.94/8,732,121.47 = 8,732,121.47/x
  3. Step 3: Cross multiply
    3,975,555.94x = 8,732,121.47 × 8,732,121.47
  4. Step 4: Simplify right side
    3,975,555.94x = 76,249,945,345,004.66
  5. Step 5: Solve for x
    x = 76,249,945,345,004.66/3,975,555.94
  6. Step 6: Final answer
    x = 19,179,693.74

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.