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Finding the Fourth Proportional to 4,809.28, 7,213.28 and 3,059.68

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Solution

The fourth proportional to 4,809.28, 7,213.28 and 3,059.68 is: 4,589.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,809.28 : 7,213.28 = 3,059.68 : x
  2. Step 2: Convert to fraction form
    4,809.28/7,213.28 = 3,059.68/x
  3. Step 3: Cross multiply
    4,809.28x = 7,213.28 × 3,059.68
  4. Step 4: Simplify right side
    4,809.28x = 22,070,328.55
  5. Step 5: Solve for x
    x = 22,070,328.55/4,809.28
  6. Step 6: Final answer
    x = 4,589.11

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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.