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Finding the Fourth Proportional to 4,800.56, 7,200.24 and 1,513.70

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Solution

The fourth proportional to 4,800.56, 7,200.24 and 1,513.70 is: 2,270.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,800.56 : 7,200.24 = 1,513.70 : x
  2. Step 2: Convert to fraction form
    4,800.56/7,200.24 = 1,513.70/x
  3. Step 3: Cross multiply
    4,800.56x = 7,200.24 × 1,513.70
  4. Step 4: Simplify right side
    4,800.56x = 10,899,003.29
  5. Step 5: Solve for x
    x = 10,899,003.29/4,800.56
  6. Step 6: Final answer
    x = 2,270.36

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Similar ratio
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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.