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Finding the Fourth Proportional to 17,603.16, 26,404.74 and 4,455.54

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Solution

The fourth proportional to 17,603.16, 26,404.74 and 4,455.54 is: 6,683.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,603.16 : 26,404.74 = 4,455.54 : x
  2. Step 2: Convert to fraction form
    17,603.16/26,404.74 = 4,455.54/x
  3. Step 3: Cross multiply
    17,603.16x = 26,404.74 × 4,455.54
  4. Step 4: Simplify right side
    17,603.16x = 117,647,375.26
  5. Step 5: Solve for x
    x = 117,647,375.26/17,603.16
  6. Step 6: Final answer
    x = 6,683.31

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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.