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Finding the Fourth Proportional to 3,330.83, 4,996.50 and 958.91

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Solution

The fourth proportional to 3,330.83, 4,996.50 and 958.91 is: 1,438.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,330.83 : 4,996.50 = 958.91 : x
  2. Step 2: Convert to fraction form
    3,330.83/4,996.50 = 958.91/x
  3. Step 3: Cross multiply
    3,330.83x = 4,996.50 × 958.91
  4. Step 4: Simplify right side
    3,330.83x = 4,791,168.83
  5. Step 5: Solve for x
    x = 4,791,168.83/3,330.83
  6. Step 6: Final answer
    x = 1,438.43

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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.