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Finding the Fourth Proportional to 8,716.16, 12,028.16 and 4,737.35

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Solution

The fourth proportional to 8,716.16, 12,028.16 and 4,737.35 is: 6,537.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,716.16 : 12,028.16 = 4,737.35 : x
  2. Step 2: Convert to fraction form
    8,716.16/12,028.16 = 4,737.35/x
  3. Step 3: Cross multiply
    8,716.16x = 12,028.16 × 4,737.35
  4. Step 4: Simplify right side
    8,716.16x = 56,981,645.69
  5. Step 5: Solve for x
    x = 56,981,645.69/8,716.16
  6. Step 6: Final answer
    x = 6,537.47

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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.