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Finding the Fourth Proportional to 7,471.12, 11,213.16 and 3,576.64

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Solution

The fourth proportional to 7,471.12, 11,213.16 and 3,576.64 is: 5,368.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,471.12 : 11,213.16 = 3,576.64 : x
  2. Step 2: Convert to fraction form
    7,471.12/11,213.16 = 3,576.64/x
  3. Step 3: Cross multiply
    7,471.12x = 11,213.16 × 3,576.64
  4. Step 4: Simplify right side
    7,471.12x = 40,105,436.58
  5. Step 5: Solve for x
    x = 40,105,436.58/7,471.12
  6. Step 6: Final answer
    x = 5,368.06

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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.