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Finding the Fourth Proportional to 7,601.68, 11,352.62 and 6,479.14

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Solution

The fourth proportional to 7,601.68, 11,352.62 and 6,479.14 is: 9,676.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,601.68 : 11,352.62 = 6,479.14 : x
  2. Step 2: Convert to fraction form
    7,601.68/11,352.62 = 6,479.14/x
  3. Step 3: Cross multiply
    7,601.68x = 11,352.62 × 6,479.14
  4. Step 4: Simplify right side
    7,601.68x = 73,555,153.57
  5. Step 5: Solve for x
    x = 73,555,153.57/7,601.68
  6. Step 6: Final answer
    x = 9,676.17

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Half scale
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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.