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Finding the Fourth Proportional to 11,603.48, 17,406.12 and 5,754.20

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Solution

The fourth proportional to 11,603.48, 17,406.12 and 5,754.20 is: 8,631.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,603.48 : 17,406.12 = 5,754.20 : x
  2. Step 2: Convert to fraction form
    11,603.48/17,406.12 = 5,754.20/x
  3. Step 3: Cross multiply
    11,603.48x = 17,406.12 × 5,754.20
  4. Step 4: Simplify right side
    11,603.48x = 100,158,295.70
  5. Step 5: Solve for x
    x = 100,158,295.70/11,603.48
  6. Step 6: Final answer
    x = 8,631.75

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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.