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Finding the Fourth Proportional to 5,918.99, 8,879.97 and 1,758.83

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Solution

The fourth proportional to 5,918.99, 8,879.97 and 1,758.83 is: 2,638.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,918.99 : 8,879.97 = 1,758.83 : x
  2. Step 2: Convert to fraction form
    5,918.99/8,879.97 = 1,758.83/x
  3. Step 3: Cross multiply
    5,918.99x = 8,879.97 × 1,758.83
  4. Step 4: Simplify right side
    5,918.99x = 15,618,357.64
  5. Step 5: Solve for x
    x = 15,618,357.64/5,918.99
  6. Step 6: Final answer
    x = 2,638.69

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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.