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Finding the Fourth Proportional to 3,557.94, 5,336.78 and 960.95

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Solution

The fourth proportional to 3,557.94, 5,336.78 and 960.95 is: 1,441.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,557.94 : 5,336.78 = 960.95 : x
  2. Step 2: Convert to fraction form
    3,557.94/5,336.78 = 960.95/x
  3. Step 3: Cross multiply
    3,557.94x = 5,336.78 × 960.95
  4. Step 4: Simplify right side
    3,557.94x = 5,128,347.25
  5. Step 5: Solve for x
    x = 5,128,347.25/3,557.94
  6. Step 6: Final answer
    x = 1,441.38

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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.