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Finding the Fourth Proportional to 3,586.91, 4,950.18 and 1,993.79

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Solution

The fourth proportional to 3,586.91, 4,950.18 and 1,993.79 is: 2,751.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,586.91 : 4,950.18 = 1,993.79 : x
  2. Step 2: Convert to fraction form
    3,586.91/4,950.18 = 1,993.79/x
  3. Step 3: Cross multiply
    3,586.91x = 4,950.18 × 1,993.79
  4. Step 4: Simplify right side
    3,586.91x = 9,869,619.38
  5. Step 5: Solve for x
    x = 9,869,619.38/3,586.91
  6. Step 6: Final answer
    x = 2,751.57

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.