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Finding the Fourth Proportional to 5,473.75, 8,210.67 and 1,369.75

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Solution

The fourth proportional to 5,473.75, 8,210.67 and 1,369.75 is: 2,054.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,473.75 : 8,210.67 = 1,369.75 : x
  2. Step 2: Convert to fraction form
    5,473.75/8,210.67 = 1,369.75/x
  3. Step 3: Cross multiply
    5,473.75x = 8,210.67 × 1,369.75
  4. Step 4: Simplify right side
    5,473.75x = 11,246,565.23
  5. Step 5: Solve for x
    x = 11,246,565.23/5,473.75
  6. Step 6: Final answer
    x = 2,054.64

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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.