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Finding the Fourth Proportional to 11,603.99, 17,405.96 and 4,208.43

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Solution

The fourth proportional to 11,603.99, 17,405.96 and 4,208.43 is: 6,312.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,603.99 : 17,405.96 = 4,208.43 : x
  2. Step 2: Convert to fraction form
    11,603.99/17,405.96 = 4,208.43/x
  3. Step 3: Cross multiply
    11,603.99x = 17,405.96 × 4,208.43
  4. Step 4: Simplify right side
    11,603.99x = 73,251,743.20
  5. Step 5: Solve for x
    x = 73,251,743.20/11,603.99
  6. Step 6: Final answer
    x = 6,312.64

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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.