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Finding the Third Proportional to 1,374,193.50 and 2,139,817.50

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Solution

The third proportional to 1,374,193.50 and 2,139,817.50 is: 3,332,004.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,374,193.50 : 2,139,817.50 = 2,139,817.50 : x
  2. Step 2: Convert to fraction form
    1,374,193.50/2,139,817.50 = 2,139,817.50/x
  3. Step 3: Cross multiply
    1,374,193.50x = 2,139,817.50 × 2,139,817.50
  4. Step 4: Simplify right side
    1,374,193.50x = 4,578,818,933,306.25
  5. Step 5: Solve for x
    x = 4,578,818,933,306.25/1,374,193.50
  6. Step 6: Final answer
    x = 3,332,004.51

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.