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Finding the Fourth Proportional to 19,486,572.85, 27,325,991.75 and 19,486,572.85

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Solution

The fourth proportional to 19,486,572.85, 27,325,991.75 and 19,486,572.85 is: 27,325,991.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,486,572.85 : 27,325,991.75 = 19,486,572.85 : x
  2. Step 2: Convert to fraction form
    19,486,572.85/27,325,991.75 = 19,486,572.85/x
  3. Step 3: Cross multiply
    19,486,572.85x = 27,325,991.75 × 19,486,572.85
  4. Step 4: Simplify right side
    19,486,572.85x = 532,489,928,934,874
  5. Step 5: Solve for x
    x = 532,489,928,934,874/19,486,572.85
  6. Step 6: Final answer
    x = 27,325,991.75

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.