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Finding the Third Proportional to 1,817,374.50 and 2,821,938.75

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Solution

The third proportional to 1,817,374.50 and 2,821,938.75 is: 4,381,781.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,817,374.50 : 2,821,938.75 = 2,821,938.75 : x
  2. Step 2: Convert to fraction form
    1,817,374.50/2,821,938.75 = 2,821,938.75/x
  3. Step 3: Cross multiply
    1,817,374.50x = 2,821,938.75 × 2,821,938.75
  4. Step 4: Simplify right side
    1,817,374.50x = 7,963,338,308,751.56
  5. Step 5: Solve for x
    x = 7,963,338,308,751.56/1,817,374.50
  6. Step 6: Final answer
    x = 4,381,781.69

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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.