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Finding the Fourth Proportional to 5,296.75, 7,309.68 and 2,939.11

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Solution

The fourth proportional to 5,296.75, 7,309.68 and 2,939.11 is: 4,056.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,296.75 : 7,309.68 = 2,939.11 : x
  2. Step 2: Convert to fraction form
    5,296.75/7,309.68 = 2,939.11/x
  3. Step 3: Cross multiply
    5,296.75x = 7,309.68 × 2,939.11
  4. Step 4: Simplify right side
    5,296.75x = 21,483,924.29
  5. Step 5: Solve for x
    x = 21,483,924.29/5,296.75
  6. Step 6: Final answer
    x = 4,056.06

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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.