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Finding the Fourth Proportional to 3,561.12, 5,341.54 and 964.24

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Solution

The fourth proportional to 3,561.12, 5,341.54 and 964.24 is: 1,446.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,561.12 : 5,341.54 = 964.24 : x
  2. Step 2: Convert to fraction form
    3,561.12/5,341.54 = 964.24/x
  3. Step 3: Cross multiply
    3,561.12x = 5,341.54 × 964.24
  4. Step 4: Simplify right side
    3,561.12x = 5,150,526.53
  5. Step 5: Solve for x
    x = 5,150,526.53/3,561.12
  6. Step 6: Final answer
    x = 1,446.32

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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.