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Finding the Fourth Proportional to 3,563.79, 5,345.28 and 966.57

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Solution

The fourth proportional to 3,563.79, 5,345.28 and 966.57 is: 1,449.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,563.79 : 5,345.28 = 966.57 : x
  2. Step 2: Convert to fraction form
    3,563.79/5,345.28 = 966.57/x
  3. Step 3: Cross multiply
    3,563.79x = 5,345.28 × 966.57
  4. Step 4: Simplify right side
    3,563.79x = 5,166,587.29
  5. Step 5: Solve for x
    x = 5,166,587.29/3,563.79
  6. Step 6: Final answer
    x = 1,449.75

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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.