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Finding the Fourth Proportional to 7,937.85, 11,908.44 and 3,007.38

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Solution

The fourth proportional to 7,937.85, 11,908.44 and 3,007.38 is: 4,511.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,937.85 : 11,908.44 = 3,007.38 : x
  2. Step 2: Convert to fraction form
    7,937.85/11,908.44 = 3,007.38/x
  3. Step 3: Cross multiply
    7,937.85x = 11,908.44 × 3,007.38
  4. Step 4: Simplify right side
    7,937.85x = 35,813,204.29
  5. Step 5: Solve for x
    x = 35,813,204.29/7,937.85
  6. Step 6: Final answer
    x = 4,511.70

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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.