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Finding the Fourth Proportional to 6,063.84, 9,085.92 and 3,138

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Solution

The fourth proportional to 6,063.84, 9,085.92 and 3,138 is: 4,701.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,063.84 : 9,085.92 = 3,138 : x
  2. Step 2: Convert to fraction form
    6,063.84/9,085.92 = 3,138/x
  3. Step 3: Cross multiply
    6,063.84x = 9,085.92 × 3,138
  4. Step 4: Simplify right side
    6,063.84x = 28,511,616.96
  5. Step 5: Solve for x
    x = 28,511,616.96/6,063.84
  6. Step 6: Final answer
    x = 4,701.91

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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.