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Finding the Fourth Proportional to 7,021.59, 9,691.73 and 4,367.42

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Solution

The fourth proportional to 7,021.59, 9,691.73 and 4,367.42 is: 6,028.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021.59 : 9,691.73 = 4,367.42 : x
  2. Step 2: Convert to fraction form
    7,021.59/9,691.73 = 4,367.42/x
  3. Step 3: Cross multiply
    7,021.59x = 9,691.73 × 4,367.42
  4. Step 4: Simplify right side
    7,021.59x = 42,327,785.14
  5. Step 5: Solve for x
    x = 42,327,785.14/7,021.59
  6. Step 6: Final answer
    x = 6,028.23

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1.5x scale

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.