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Finding the Fourth Proportional to 3,396.64, 5,095.18 and 1,056.86

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Solution

The fourth proportional to 3,396.64, 5,095.18 and 1,056.86 is: 1,585.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,396.64 : 5,095.18 = 1,056.86 : x
  2. Step 2: Convert to fraction form
    3,396.64/5,095.18 = 1,056.86/x
  3. Step 3: Cross multiply
    3,396.64x = 5,095.18 × 1,056.86
  4. Step 4: Simplify right side
    3,396.64x = 5,384,891.93
  5. Step 5: Solve for x
    x = 5,384,891.93/3,396.64
  6. Step 6: Final answer
    x = 1,585.36

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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.