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Finding the Fourth Proportional to 5,274.67, 7,279.46 and 2,917.03

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Solution

The fourth proportional to 5,274.67, 7,279.46 and 2,917.03 is: 4,025.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,274.67 : 7,279.46 = 2,917.03 : x
  2. Step 2: Convert to fraction form
    5,274.67/7,279.46 = 2,917.03/x
  3. Step 3: Cross multiply
    5,274.67x = 7,279.46 × 2,917.03
  4. Step 4: Simplify right side
    5,274.67x = 21,234,403.20
  5. Step 5: Solve for x
    x = 21,234,403.20/5,274.67
  6. Step 6: Final answer
    x = 4,025.73

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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.