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Finding the Fourth Proportional to 8,480.64, 11,704.32 and 5,336.76

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Solution

The fourth proportional to 8,480.64, 11,704.32 and 5,336.76 is: 7,365.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,480.64 : 11,704.32 = 5,336.76 : x
  2. Step 2: Convert to fraction form
    8,480.64/11,704.32 = 5,336.76/x
  3. Step 3: Cross multiply
    8,480.64x = 11,704.32 × 5,336.76
  4. Step 4: Simplify right side
    8,480.64x = 62,463,146.80
  5. Step 5: Solve for x
    x = 62,463,146.80/8,480.64
  6. Step 6: Final answer
    x = 7,365.38

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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.