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Finding the Fourth Proportional to 17,993,912.40, 26,990,868.60 and 13,476,663.90

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Solution

The fourth proportional to 17,993,912.40, 26,990,868.60 and 13,476,663.90 is: 20,214,995.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,993,912.40 : 26,990,868.60 = 13,476,663.90 : x
  2. Step 2: Convert to fraction form
    17,993,912.40/26,990,868.60 = 13,476,663.90/x
  3. Step 3: Cross multiply
    17,993,912.40x = 26,990,868.60 × 13,476,663.90
  4. Step 4: Simplify right side
    17,993,912.40x = 363,746,864,491,263.56
  5. Step 5: Solve for x
    x = 363,746,864,491,263.56/17,993,912.40
  6. Step 6: Final answer
    x = 20,214,995.85

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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.