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Finding the Fourth Proportional to 8,603.24, 12,899.48 and 3,604.26

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Solution

The fourth proportional to 8,603.24, 12,899.48 and 3,604.26 is: 5,404.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,603.24 : 12,899.48 = 3,604.26 : x
  2. Step 2: Convert to fraction form
    8,603.24/12,899.48 = 3,604.26/x
  3. Step 3: Cross multiply
    8,603.24x = 12,899.48 × 3,604.26
  4. Step 4: Simplify right side
    8,603.24x = 46,493,032.39
  5. Step 5: Solve for x
    x = 46,493,032.39/8,603.24
  6. Step 6: Final answer
    x = 5,404.13

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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.