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Finding the Fourth Proportional to 18,723,132.90, 26,247,775.50 and 18,723,132.90

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Solution

The fourth proportional to 18,723,132.90, 26,247,775.50 and 18,723,132.90 is: 26,247,775.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723,132.90 : 26,247,775.50 = 18,723,132.90 : x
  2. Step 2: Convert to fraction form
    18,723,132.90/26,247,775.50 = 18,723,132.90/x
  3. Step 3: Cross multiply
    18,723,132.90x = 26,247,775.50 × 18,723,132.90
  4. Step 4: Simplify right side
    18,723,132.90x = 491,440,589,015,863.94
  5. Step 5: Solve for x
    x = 491,440,589,015,863.94/18,723,132.90
  6. Step 6: Final answer
    x = 26,247,775.50

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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.