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Finding the Fourth Proportional to 7,994.34, 11,995.29 and 3,613.14

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Solution

The fourth proportional to 7,994.34, 11,995.29 and 3,613.14 is: 5,421.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,994.34 : 11,995.29 = 3,613.14 : x
  2. Step 2: Convert to fraction form
    7,994.34/11,995.29 = 3,613.14/x
  3. Step 3: Cross multiply
    7,994.34x = 11,995.29 × 3,613.14
  4. Step 4: Simplify right side
    7,994.34x = 43,340,662.11
  5. Step 5: Solve for x
    x = 43,340,662.11/7,994.34
  6. Step 6: Final answer
    x = 5,421.42

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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.