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Finding the Fourth Proportional to 18,738,082.90, 26,254,573.70 and 18,738,082.90

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Solution

The fourth proportional to 18,738,082.90, 26,254,573.70 and 18,738,082.90 is: 26,254,573.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,738,082.90 : 26,254,573.70 = 18,738,082.90 : x
  2. Step 2: Convert to fraction form
    18,738,082.90/26,254,573.70 = 18,738,082.90/x
  3. Step 3: Cross multiply
    18,738,082.90x = 26,254,573.70 × 18,738,082.90
  4. Step 4: Simplify right side
    18,738,082.90x = 491,960,378,494,759.69
  5. Step 5: Solve for x
    x = 491,960,378,494,759.69/18,738,082.90
  6. Step 6: Final answer
    x = 26,254,573.70

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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.