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Finding the Fourth Proportional to 3,563.76, 5,345.04 and 966.72

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Solution

The fourth proportional to 3,563.76, 5,345.04 and 966.72 is: 1,449.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,563.76 : 5,345.04 = 966.72 : x
  2. Step 2: Convert to fraction form
    3,563.76/5,345.04 = 966.72/x
  3. Step 3: Cross multiply
    3,563.76x = 5,345.04 × 966.72
  4. Step 4: Simplify right side
    3,563.76x = 5,167,157.07
  5. Step 5: Solve for x
    x = 5,167,157.07/3,563.76
  6. Step 6: Final answer
    x = 1,449.92

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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.