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Finding the Fourth Proportional to 4,451.70, 6,137.70 and 2,939.04

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Solution

The fourth proportional to 4,451.70, 6,137.70 and 2,939.04 is: 4,052.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,451.70 : 6,137.70 = 2,939.04 : x
  2. Step 2: Convert to fraction form
    4,451.70/6,137.70 = 2,939.04/x
  3. Step 3: Cross multiply
    4,451.70x = 6,137.70 × 2,939.04
  4. Step 4: Simplify right side
    4,451.70x = 18,038,945.81
  5. Step 5: Solve for x
    x = 18,038,945.81/4,451.70
  6. Step 6: Final answer
    x = 4,052.15

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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.