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Finding the Fourth Proportional to 18,487,002.10, 27,667,517.55 and 18,487,002.10

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Solution

The fourth proportional to 18,487,002.10, 27,667,517.55 and 18,487,002.10 is: 27,667,517.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,487,002.10 : 27,667,517.55 = 18,487,002.10 : x
  2. Step 2: Convert to fraction form
    18,487,002.10/27,667,517.55 = 18,487,002.10/x
  3. Step 3: Cross multiply
    18,487,002.10x = 27,667,517.55 × 18,487,002.10
  4. Step 4: Simplify right side
    18,487,002.10x = 511,489,455,048,636.94
  5. Step 5: Solve for x
    x = 511,489,455,048,636.94/18,487,002.10
  6. Step 6: Final answer
    x = 27,667,517.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.