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Finding the Fourth Proportional to 2,983.66, 4,475.10 and 792.56

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Solution

The fourth proportional to 2,983.66, 4,475.10 and 792.56 is: 1,188.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,983.66 : 4,475.10 = 792.56 : x
  2. Step 2: Convert to fraction form
    2,983.66/4,475.10 = 792.56/x
  3. Step 3: Cross multiply
    2,983.66x = 4,475.10 × 792.56
  4. Step 4: Simplify right side
    2,983.66x = 3,546,785.26
  5. Step 5: Solve for x
    x = 3,546,785.26/2,983.66
  6. Step 6: Final answer
    x = 1,188.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.