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Finding the Fourth Proportional to 7,183.52, 9,920.76 and 4,951.16

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Solution

The fourth proportional to 7,183.52, 9,920.76 and 4,951.16 is: 6,837.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,183.52 : 9,920.76 = 4,951.16 : x
  2. Step 2: Convert to fraction form
    7,183.52/9,920.76 = 4,951.16/x
  3. Step 3: Cross multiply
    7,183.52x = 9,920.76 × 4,951.16
  4. Step 4: Simplify right side
    7,183.52x = 49,119,270.08
  5. Step 5: Solve for x
    x = 49,119,270.08/7,183.52
  6. Step 6: Final answer
    x = 6,837.77

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Half scale
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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.