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Finding the Fourth Proportional to 5,379.21, 8,068.21 and 1,483.92

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Solution

The fourth proportional to 5,379.21, 8,068.21 and 1,483.92 is: 2,225.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.21 : 8,068.21 = 1,483.92 : x
  2. Step 2: Convert to fraction form
    5,379.21/8,068.21 = 1,483.92/x
  3. Step 3: Cross multiply
    5,379.21x = 8,068.21 × 1,483.92
  4. Step 4: Simplify right side
    5,379.21x = 11,972,574.47
  5. Step 5: Solve for x
    x = 11,972,574.47/5,379.21
  6. Step 6: Final answer
    x = 2,225.71

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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.