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Finding the Fourth Proportional to 5,366.64, 7,405.73 and 2,976.60

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Solution

The fourth proportional to 5,366.64, 7,405.73 and 2,976.60 is: 4,107.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,366.64 : 7,405.73 = 2,976.60 : x
  2. Step 2: Convert to fraction form
    5,366.64/7,405.73 = 2,976.60/x
  3. Step 3: Cross multiply
    5,366.64x = 7,405.73 × 2,976.60
  4. Step 4: Simplify right side
    5,366.64x = 22,043,881.04
  5. Step 5: Solve for x
    x = 22,043,881.04/5,366.64
  6. Step 6: Final answer
    x = 4,107.58

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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.