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Finding the Fourth Proportional to 5,584.78, 7,707 and 3,227.32

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Solution

The fourth proportional to 5,584.78, 7,707 and 3,227.32 is: 4,453.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,584.78 : 7,707 = 3,227.32 : x
  2. Step 2: Convert to fraction form
    5,584.78/7,707 = 3,227.32/x
  3. Step 3: Cross multiply
    5,584.78x = 7,707 × 3,227.32
  4. Step 4: Simplify right side
    5,584.78x = 24,872,955.24
  5. Step 5: Solve for x
    x = 24,872,955.24/5,584.78
  6. Step 6: Final answer
    x = 4,453.70

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Half scale
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Double 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.