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Finding the Fourth Proportional to 7,329.96, 10,992.72 and 2,649.42

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Solution

The fourth proportional to 7,329.96, 10,992.72 and 2,649.42 is: 3,973.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,329.96 : 10,992.72 = 2,649.42 : x
  2. Step 2: Convert to fraction form
    7,329.96/10,992.72 = 2,649.42/x
  3. Step 3: Cross multiply
    7,329.96x = 10,992.72 × 2,649.42
  4. Step 4: Simplify right side
    7,329.96x = 29,124,332.22
  5. Step 5: Solve for x
    x = 29,124,332.22/7,329.96
  6. Step 6: Final answer
    x = 3,973.33

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1.5x scale

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.