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Finding the Third Proportional to 2,187,698.63 and 3,311,730.56

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Solution

The third proportional to 2,187,698.63 and 3,311,730.56 is: 5,013,286.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,698.63 : 3,311,730.56 = 3,311,730.56 : x
  2. Step 2: Convert to fraction form
    2,187,698.63/3,311,730.56 = 3,311,730.56/x
  3. Step 3: Cross multiply
    2,187,698.63x = 3,311,730.56 × 3,311,730.56
  4. Step 4: Simplify right side
    2,187,698.63x = 10,967,559,318,596.57
  5. Step 5: Solve for x
    x = 10,967,559,318,596.57/2,187,698.63
  6. Step 6: Final answer
    x = 5,013,286.20

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.