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Finding the Third Proportional to 1,859,643.56 and 2,872,372.64

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Solution

The third proportional to 1,859,643.56 and 2,872,372.64 is: 4,436,616.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,859,643.56 : 2,872,372.64 = 2,872,372.64 : x
  2. Step 2: Convert to fraction form
    1,859,643.56/2,872,372.64 = 2,872,372.64/x
  3. Step 3: Cross multiply
    1,859,643.56x = 2,872,372.64 × 2,872,372.64
  4. Step 4: Simplify right side
    1,859,643.56x = 8,250,524,586,611.04
  5. Step 5: Solve for x
    x = 8,250,524,586,611.04/1,859,643.56
  6. Step 6: Final answer
    x = 4,436,616.11

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.