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Finding the Fourth Proportional to 11,500.77, 17,251.14 and 3,603.89

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Solution

The fourth proportional to 11,500.77, 17,251.14 and 3,603.89 is: 5,405.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,500.77 : 17,251.14 = 3,603.89 : x
  2. Step 2: Convert to fraction form
    11,500.77/17,251.14 = 3,603.89/x
  3. Step 3: Cross multiply
    11,500.77x = 17,251.14 × 3,603.89
  4. Step 4: Simplify right side
    11,500.77x = 62,171,192.92
  5. Step 5: Solve for x
    x = 62,171,192.92/11,500.77
  6. Step 6: Final answer
    x = 5,405.83

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1.5x scale

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.