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Finding the Third Proportional to 1,889,428.74 and 3,858,162.81

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Solution

The third proportional to 1,889,428.74 and 3,858,162.81 is: 7,878,264.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889,428.74 : 3,858,162.81 = 3,858,162.81 : x
  2. Step 2: Convert to fraction form
    1,889,428.74/3,858,162.81 = 3,858,162.81/x
  3. Step 3: Cross multiply
    1,889,428.74x = 3,858,162.81 × 3,858,162.81
  4. Step 4: Simplify right side
    1,889,428.74x = 14,885,420,280,221.38
  5. Step 5: Solve for x
    x = 14,885,420,280,221.38/1,889,428.74
  6. Step 6: Final answer
    x = 7,878,264.98

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.