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Finding the Fourth Proportional to 7,336.98, 10,947.69 and 6,890.54

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Solution

The fourth proportional to 7,336.98, 10,947.69 and 6,890.54 is: 10,281.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,336.98 : 10,947.69 = 6,890.54 : x
  2. Step 2: Convert to fraction form
    7,336.98/10,947.69 = 6,890.54/x
  3. Step 3: Cross multiply
    7,336.98x = 10,947.69 × 6,890.54
  4. Step 4: Simplify right side
    7,336.98x = 75,435,441.11
  5. Step 5: Solve for x
    x = 75,435,441.11/7,336.98
  6. Step 6: Final answer
    x = 10,281.54

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.