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Finding the Fourth Proportional to 5,521.76, 8,281.82 and 1,824.11

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Solution

The fourth proportional to 5,521.76, 8,281.82 and 1,824.11 is: 2,735.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,521.76 : 8,281.82 = 1,824.11 : x
  2. Step 2: Convert to fraction form
    5,521.76/8,281.82 = 1,824.11/x
  3. Step 3: Cross multiply
    5,521.76x = 8,281.82 × 1,824.11
  4. Step 4: Simplify right side
    5,521.76x = 15,106,950.68
  5. Step 5: Solve for x
    x = 15,106,950.68/5,521.76
  6. Step 6: Final answer
    x = 2,735.89

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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.