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Finding the Fourth Proportional to 3,056.16, 4,584.16 and 747.64

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Solution

The fourth proportional to 3,056.16, 4,584.16 and 747.64 is: 1,121.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,056.16 : 4,584.16 = 747.64 : x
  2. Step 2: Convert to fraction form
    3,056.16/4,584.16 = 747.64/x
  3. Step 3: Cross multiply
    3,056.16x = 4,584.16 × 747.64
  4. Step 4: Simplify right side
    3,056.16x = 3,427,301.38
  5. Step 5: Solve for x
    x = 3,427,301.38/3,056.16
  6. Step 6: Final answer
    x = 1,121.44

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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.