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Finding the Fourth Proportional to 7,229.70, 10,839.15 and 3,066.30

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Solution

The fourth proportional to 7,229.70, 10,839.15 and 3,066.30 is: 4,597.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,229.70 : 10,839.15 = 3,066.30 : x
  2. Step 2: Convert to fraction form
    7,229.70/10,839.15 = 3,066.30/x
  3. Step 3: Cross multiply
    7,229.70x = 10,839.15 × 3,066.30
  4. Step 4: Simplify right side
    7,229.70x = 33,236,085.65
  5. Step 5: Solve for x
    x = 33,236,085.65/7,229.70
  6. Step 6: Final answer
    x = 4,597.16

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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.