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Finding the Fourth Proportional to 7,067.63, 10,636.90 and 5,321.68

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Solution

The fourth proportional to 7,067.63, 10,636.90 and 5,321.68 is: 8,009.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,067.63 : 10,636.90 = 5,321.68 : x
  2. Step 2: Convert to fraction form
    7,067.63/10,636.90 = 5,321.68/x
  3. Step 3: Cross multiply
    7,067.63x = 10,636.90 × 5,321.68
  4. Step 4: Simplify right side
    7,067.63x = 56,606,177.99
  5. Step 5: Solve for x
    x = 56,606,177.99/7,067.63
  6. Step 6: Final answer
    x = 8,009.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.