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Finding the Fourth Proportional to 5,334.64, 7,361.76 and 2,976.64

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Solution

The fourth proportional to 5,334.64, 7,361.76 and 2,976.64 is: 4,107.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,334.64 : 7,361.76 = 2,976.64 : x
  2. Step 2: Convert to fraction form
    5,334.64/7,361.76 = 2,976.64/x
  3. Step 3: Cross multiply
    5,334.64x = 7,361.76 × 2,976.64
  4. Step 4: Simplify right side
    5,334.64x = 21,913,309.29
  5. Step 5: Solve for x
    x = 21,913,309.29/5,334.64
  6. Step 6: Final answer
    x = 4,107.74

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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.