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Finding the Third Proportional to 1,531,641 and 2,543,865

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Solution

The third proportional to 1,531,641 and 2,543,865 is: 4,225,043.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531,641 : 2,543,865 = 2,543,865 : x
  2. Step 2: Convert to fraction form
    1,531,641/2,543,865 = 2,543,865/x
  3. Step 3: Cross multiply
    1,531,641x = 2,543,865 × 2,543,865
  4. Step 4: Simplify right side
    1,531,641x = 6,471,249,138,225
  5. Step 5: Solve for x
    x = 6,471,249,138,225/1,531,641
  6. Step 6: Final answer
    x = 4,225,043.03

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.