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Finding the Fourth Proportional to 8,408.56, 12,599.82 and 5,777.32

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Solution

The fourth proportional to 8,408.56, 12,599.82 and 5,777.32 is: 8,657.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,408.56 : 12,599.82 = 5,777.32 : x
  2. Step 2: Convert to fraction form
    8,408.56/12,599.82 = 5,777.32/x
  3. Step 3: Cross multiply
    8,408.56x = 12,599.82 × 5,777.32
  4. Step 4: Simplify right side
    8,408.56x = 72,793,192.08
  5. Step 5: Solve for x
    x = 72,793,192.08/8,408.56
  6. Step 6: Final answer
    x = 8,657.03

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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.