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Finding the Fourth Proportional to 7,343.35, 10,133.82 and 3,986.16

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Solution

The fourth proportional to 7,343.35, 10,133.82 and 3,986.16 is: 5,500.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,343.35 : 10,133.82 = 3,986.16 : x
  2. Step 2: Convert to fraction form
    7,343.35/10,133.82 = 3,986.16/x
  3. Step 3: Cross multiply
    7,343.35x = 10,133.82 × 3,986.16
  4. Step 4: Simplify right side
    7,343.35x = 40,394,977.26
  5. Step 5: Solve for x
    x = 40,394,977.26/7,343.35
  6. Step 6: Final answer
    x = 5,500.90

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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.