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Finding the Fourth Proportional to 19,903.22, 29,836.91 and 7,599.86

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Solution

The fourth proportional to 19,903.22, 29,836.91 and 7,599.86 is: 11,392.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,903.22 : 29,836.91 = 7,599.86 : x
  2. Step 2: Convert to fraction form
    19,903.22/29,836.91 = 7,599.86/x
  3. Step 3: Cross multiply
    19,903.22x = 29,836.91 × 7,599.86
  4. Step 4: Simplify right side
    19,903.22x = 226,756,338.83
  5. Step 5: Solve for x
    x = 226,756,338.83/19,903.22
  6. Step 6: Final answer
    x = 11,392.95

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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.