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Finding the Fourth Proportional to 8,716.32, 12,028.52 and 4,737.42

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Solution

The fourth proportional to 8,716.32, 12,028.52 and 4,737.42 is: 6,537.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,716.32 : 12,028.52 = 4,737.42 : x
  2. Step 2: Convert to fraction form
    8,716.32/12,028.52 = 4,737.42/x
  3. Step 3: Cross multiply
    8,716.32x = 12,028.52 × 4,737.42
  4. Step 4: Simplify right side
    8,716.32x = 56,984,163.06
  5. Step 5: Solve for x
    x = 56,984,163.06/8,716.32
  6. Step 6: Final answer
    x = 6,537.64

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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.