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Finding the Third Proportional to 2,142,789.56 and 4,576,185.56

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Solution

The third proportional to 2,142,789.56 and 4,576,185.56 is: 9,772,996.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,142,789.56 : 4,576,185.56 = 4,576,185.56 : x
  2. Step 2: Convert to fraction form
    2,142,789.56/4,576,185.56 = 4,576,185.56/x
  3. Step 3: Cross multiply
    2,142,789.56x = 4,576,185.56 × 4,576,185.56
  4. Step 4: Simplify right side
    2,142,789.56x = 20,941,474,302,433.44
  5. Step 5: Solve for x
    x = 20,941,474,302,433.44/2,142,789.56
  6. Step 6: Final answer
    x = 9,772,996.22

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.