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Finding the Fourth Proportional to 5,284.76, 7,922.68 and 2,649.02

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Solution

The fourth proportional to 5,284.76, 7,922.68 and 2,649.02 is: 3,971.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,284.76 : 7,922.68 = 2,649.02 : x
  2. Step 2: Convert to fraction form
    5,284.76/7,922.68 = 2,649.02/x
  3. Step 3: Cross multiply
    5,284.76x = 7,922.68 × 2,649.02
  4. Step 4: Simplify right side
    5,284.76x = 20,987,291.54
  5. Step 5: Solve for x
    x = 20,987,291.54/5,284.76
  6. Step 6: Final answer
    x = 3,971.29

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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.