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Finding the Fourth Proportional to 3,379.72, 5,069.99 and 1,158.93

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Solution

The fourth proportional to 3,379.72, 5,069.99 and 1,158.93 is: 1,738.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.72 : 5,069.99 = 1,158.93 : x
  2. Step 2: Convert to fraction form
    3,379.72/5,069.99 = 1,158.93/x
  3. Step 3: Cross multiply
    3,379.72x = 5,069.99 × 1,158.93
  4. Step 4: Simplify right side
    3,379.72x = 5,875,763.51
  5. Step 5: Solve for x
    x = 5,875,763.51/3,379.72
  6. Step 6: Final answer
    x = 1,738.54

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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.