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Finding the Fourth Proportional to 8,408.03, 11,599.08 and 5,422.37

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Solution

The fourth proportional to 8,408.03, 11,599.08 and 5,422.37 is: 7,480.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,408.03 : 11,599.08 = 5,422.37 : x
  2. Step 2: Convert to fraction form
    8,408.03/11,599.08 = 5,422.37/x
  3. Step 3: Cross multiply
    8,408.03x = 11,599.08 × 5,422.37
  4. Step 4: Simplify right side
    8,408.03x = 62,894,503.42
  5. Step 5: Solve for x
    x = 62,894,503.42/8,408.03
  6. Step 6: Final answer
    x = 7,480.29

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.