Home / 7,582.88-11,375.76-3,422.96

Finding the Fourth Proportional to 7,582.88, 11,375.76 and 3,422.96

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Solution

The fourth proportional to 7,582.88, 11,375.76 and 3,422.96 is: 5,135.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,582.88 : 11,375.76 = 3,422.96 : x
  2. Step 2: Convert to fraction form
    7,582.88/11,375.76 = 3,422.96/x
  3. Step 3: Cross multiply
    7,582.88x = 11,375.76 × 3,422.96
  4. Step 4: Simplify right side
    7,582.88x = 38,938,771.45
  5. Step 5: Solve for x
    x = 38,938,771.45/7,582.88
  6. Step 6: Final answer
    x = 5,135.09

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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.