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Finding the Fourth Proportional to 5,731.96, 7,910.13 and 3,343.58

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Solution

The fourth proportional to 5,731.96, 7,910.13 and 3,343.58 is: 4,614.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,731.96 : 7,910.13 = 3,343.58 : x
  2. Step 2: Convert to fraction form
    5,731.96/7,910.13 = 3,343.58/x
  3. Step 3: Cross multiply
    5,731.96x = 7,910.13 × 3,343.58
  4. Step 4: Simplify right side
    5,731.96x = 26,448,152.47
  5. Step 5: Solve for x
    x = 26,448,152.47/5,731.96
  6. Step 6: Final answer
    x = 4,614.16

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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.