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Finding the Fourth Proportional to 4,794.64, 7,191.96 and 2,920.96

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Solution

The fourth proportional to 4,794.64, 7,191.96 and 2,920.96 is: 4,381.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,794.64 : 7,191.96 = 2,920.96 : x
  2. Step 2: Convert to fraction form
    4,794.64/7,191.96 = 2,920.96/x
  3. Step 3: Cross multiply
    4,794.64x = 7,191.96 × 2,920.96
  4. Step 4: Simplify right side
    4,794.64x = 21,007,427.48
  5. Step 5: Solve for x
    x = 21,007,427.48/4,794.64
  6. Step 6: Final answer
    x = 4,381.44

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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.