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Finding the Fourth Proportional to 7,653.48, 11,480.22 and 3,953.81

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Solution

The fourth proportional to 7,653.48, 11,480.22 and 3,953.81 is: 5,930.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,653.48 : 11,480.22 = 3,953.81 : x
  2. Step 2: Convert to fraction form
    7,653.48/11,480.22 = 3,953.81/x
  3. Step 3: Cross multiply
    7,653.48x = 11,480.22 × 3,953.81
  4. Step 4: Simplify right side
    7,653.48x = 45,390,551.24
  5. Step 5: Solve for x
    x = 45,390,551.24/7,653.48
  6. Step 6: Final answer
    x = 5,930.71

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.