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Finding the Fourth Proportional to 5,416.64, 7,474.96 and 2,932.64

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Solution

The fourth proportional to 5,416.64, 7,474.96 and 2,932.64 is: 4,047.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.64 : 7,474.96 = 2,932.64 : x
  2. Step 2: Convert to fraction form
    5,416.64/7,474.96 = 2,932.64/x
  3. Step 3: Cross multiply
    5,416.64x = 7,474.96 × 2,932.64
  4. Step 4: Simplify right side
    5,416.64x = 21,921,366.69
  5. Step 5: Solve for x
    x = 21,921,366.69/5,416.64
  6. Step 6: Final answer
    x = 4,047.04

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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.