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Finding the Third Proportional to 2,252,987.79 and 3,490,803.21

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Solution

The third proportional to 2,252,987.79 and 3,490,803.21 is: 5,408,687.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,252,987.79 : 3,490,803.21 = 3,490,803.21 : x
  2. Step 2: Convert to fraction form
    2,252,987.79/3,490,803.21 = 3,490,803.21/x
  3. Step 3: Cross multiply
    2,252,987.79x = 3,490,803.21 × 3,490,803.21
  4. Step 4: Simplify right side
    2,252,987.79x = 12,185,707,057,491.56
  5. Step 5: Solve for x
    x = 12,185,707,057,491.56/2,252,987.79
  6. Step 6: Final answer
    x = 5,408,687.57

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.