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Finding the Third Proportional to 1,538,168.75 and 2,387,870.75

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Solution

The third proportional to 1,538,168.75 and 2,387,870.75 is: 3,706,957.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538,168.75 : 2,387,870.75 = 2,387,870.75 : x
  2. Step 2: Convert to fraction form
    1,538,168.75/2,387,870.75 = 2,387,870.75/x
  3. Step 3: Cross multiply
    1,538,168.75x = 2,387,870.75 × 2,387,870.75
  4. Step 4: Simplify right side
    1,538,168.75x = 5,701,926,718,705.56
  5. Step 5: Solve for x
    x = 5,701,926,718,705.56/1,538,168.75
  6. Step 6: Final answer
    x = 3,706,957.85

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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.