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Finding the Fourth Proportional to 3,586.81, 4,949.90 and 2,014.87

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Solution

The fourth proportional to 3,586.81, 4,949.90 and 2,014.87 is: 2,780.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,586.81 : 4,949.90 = 2,014.87 : x
  2. Step 2: Convert to fraction form
    3,586.81/4,949.90 = 2,014.87/x
  3. Step 3: Cross multiply
    3,586.81x = 4,949.90 × 2,014.87
  4. Step 4: Simplify right side
    3,586.81x = 9,973,405.01
  5. Step 5: Solve for x
    x = 9,973,405.01/3,586.81
  6. Step 6: Final answer
    x = 2,780.58

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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.