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Finding the Fourth Proportional to 18,844,915.80, 26,442,601.80 and 18,844,915.80

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Solution

The fourth proportional to 18,844,915.80, 26,442,601.80 and 18,844,915.80 is: 26,442,601.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,844,915.80 : 26,442,601.80 = 18,844,915.80 : x
  2. Step 2: Convert to fraction form
    18,844,915.80/26,442,601.80 = 18,844,915.80/x
  3. Step 3: Cross multiply
    18,844,915.80x = 26,442,601.80 × 18,844,915.80
  4. Step 4: Simplify right side
    18,844,915.80x = 498,308,604,453,928.50
  5. Step 5: Solve for x
    x = 498,308,604,453,928.50/18,844,915.80
  6. Step 6: Final answer
    x = 26,442,601.80

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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.