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Finding the Fourth Proportional to 8,450.76, 11,662.04 and 4,724.76

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Solution

The fourth proportional to 8,450.76, 11,662.04 and 4,724.76 is: 6,520.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,450.76 : 11,662.04 = 4,724.76 : x
  2. Step 2: Convert to fraction form
    8,450.76/11,662.04 = 4,724.76/x
  3. Step 3: Cross multiply
    8,450.76x = 11,662.04 × 4,724.76
  4. Step 4: Simplify right side
    8,450.76x = 55,100,340.11
  5. Step 5: Solve for x
    x = 55,100,340.11/8,450.76
  6. Step 6: Final answer
    x = 6,520.16

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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.