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Finding the Fourth Proportional to 5,583.44, 8,408.60 and 5,085.22

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Solution

The fourth proportional to 5,583.44, 8,408.60 and 5,085.22 is: 7,658.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,583.44 : 8,408.60 = 5,085.22 : x
  2. Step 2: Convert to fraction form
    5,583.44/8,408.60 = 5,085.22/x
  3. Step 3: Cross multiply
    5,583.44x = 8,408.60 × 5,085.22
  4. Step 4: Simplify right side
    5,583.44x = 42,759,538.85
  5. Step 5: Solve for x
    x = 42,759,538.85/5,583.44
  6. Step 6: Final answer
    x = 7,658.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.