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Finding the Fourth Proportional to 5,626.67, 7,764.77 and 3,108.77

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Solution

The fourth proportional to 5,626.67, 7,764.77 and 3,108.77 is: 4,290.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,626.67 : 7,764.77 = 3,108.77 : x
  2. Step 2: Convert to fraction form
    5,626.67/7,764.77 = 3,108.77/x
  3. Step 3: Cross multiply
    5,626.67x = 7,764.77 × 3,108.77
  4. Step 4: Simplify right side
    5,626.67x = 24,138,884.03
  5. Step 5: Solve for x
    x = 24,138,884.03/5,626.67
  6. Step 6: Final answer
    x = 4,290.08

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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.