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Finding the Fourth Proportional to 5,441.75, 7,509.75 and 2,957.75

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Solution

The fourth proportional to 5,441.75, 7,509.75 and 2,957.75 is: 4,081.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,441.75 : 7,509.75 = 2,957.75 : x
  2. Step 2: Convert to fraction form
    5,441.75/7,509.75 = 2,957.75/x
  3. Step 3: Cross multiply
    5,441.75x = 7,509.75 × 2,957.75
  4. Step 4: Simplify right side
    5,441.75x = 22,211,963.06
  5. Step 5: Solve for x
    x = 22,211,963.06/5,441.75
  6. Step 6: Final answer
    x = 4,081.77

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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.