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Finding the Fourth Proportional to 5,007.68, 6,910.75 and 2,739.16

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Solution

The fourth proportional to 5,007.68, 6,910.75 and 2,739.16 is: 3,780.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,007.68 : 6,910.75 = 2,739.16 : x
  2. Step 2: Convert to fraction form
    5,007.68/6,910.75 = 2,739.16/x
  3. Step 3: Cross multiply
    5,007.68x = 6,910.75 × 2,739.16
  4. Step 4: Simplify right side
    5,007.68x = 18,929,649.97
  5. Step 5: Solve for x
    x = 18,929,649.97/5,007.68
  6. Step 6: Final answer
    x = 3,780.12

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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.