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Finding the Fourth Proportional to 5,296.76, 7,310.40 and 3,201.20

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Solution

The fourth proportional to 5,296.76, 7,310.40 and 3,201.20 is: 4,418.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,296.76 : 7,310.40 = 3,201.20 : x
  2. Step 2: Convert to fraction form
    5,296.76/7,310.40 = 3,201.20/x
  3. Step 3: Cross multiply
    5,296.76x = 7,310.40 × 3,201.20
  4. Step 4: Simplify right side
    5,296.76x = 23,402,052.48
  5. Step 5: Solve for x
    x = 23,402,052.48/5,296.76
  6. Step 6: Final answer
    x = 4,418.18

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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.