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Finding the Third Proportional to 18,487,667.81 and 28,850,716.05

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Solution

The third proportional to 18,487,667.81 and 28,850,716.05 is: 45,022,651.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,487,667.81 : 28,850,716.05 = 28,850,716.05 : x
  2. Step 2: Convert to fraction form
    18,487,667.81/28,850,716.05 = 28,850,716.05/x
  3. Step 3: Cross multiply
    18,487,667.81x = 28,850,716.05 × 28,850,716.05
  4. Step 4: Simplify right side
    18,487,667.81x = 832,363,816,868,231.88
  5. Step 5: Solve for x
    x = 832,363,816,868,231.88/18,487,667.81
  6. Step 6: Final answer
    x = 45,022,651.06

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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.