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Finding the Fourth Proportional to 5,013.28, 6,917.60 and 3,023.28

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Solution

The fourth proportional to 5,013.28, 6,917.60 and 3,023.28 is: 4,171.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,013.28 : 6,917.60 = 3,023.28 : x
  2. Step 2: Convert to fraction form
    5,013.28/6,917.60 = 3,023.28/x
  3. Step 3: Cross multiply
    5,013.28x = 6,917.60 × 3,023.28
  4. Step 4: Simplify right side
    5,013.28x = 20,913,841.73
  5. Step 5: Solve for x
    x = 20,913,841.73/5,013.28
  6. Step 6: Final answer
    x = 4,171.69

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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.