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Finding the Fourth Proportional to 7,242.48, 10,859.94 and 3,349.62

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Solution

The fourth proportional to 7,242.48, 10,859.94 and 3,349.62 is: 5,022.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,242.48 : 10,859.94 = 3,349.62 : x
  2. Step 2: Convert to fraction form
    7,242.48/10,859.94 = 3,349.62/x
  3. Step 3: Cross multiply
    7,242.48x = 10,859.94 × 3,349.62
  4. Step 4: Simplify right side
    7,242.48x = 36,376,672.22
  5. Step 5: Solve for x
    x = 36,376,672.22/7,242.48
  6. Step 6: Final answer
    x = 5,022.68

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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.