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Finding the Fourth Proportional to 3,568.74, 4,921.20 and 2,373.30

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Solution

The fourth proportional to 3,568.74, 4,921.20 and 2,373.30 is: 3,272.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,568.74 : 4,921.20 = 2,373.30 : x
  2. Step 2: Convert to fraction form
    3,568.74/4,921.20 = 2,373.30/x
  3. Step 3: Cross multiply
    3,568.74x = 4,921.20 × 2,373.30
  4. Step 4: Simplify right side
    3,568.74x = 11,679,483.96
  5. Step 5: Solve for x
    x = 11,679,483.96/3,568.74
  6. Step 6: Final answer
    x = 3,272.72

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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.