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Finding the Fourth Proportional to 5,731.28, 7,908.84 and 3,373.28

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Solution

The fourth proportional to 5,731.28, 7,908.84 and 3,373.28 is: 4,654.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,731.28 : 7,908.84 = 3,373.28 : x
  2. Step 2: Convert to fraction form
    5,731.28/7,908.84 = 3,373.28/x
  3. Step 3: Cross multiply
    5,731.28x = 7,908.84 × 3,373.28
  4. Step 4: Simplify right side
    5,731.28x = 26,678,731.80
  5. Step 5: Solve for x
    x = 26,678,731.80/5,731.28
  6. Step 6: Final answer
    x = 4,654.93

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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.