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Finding the Fourth Proportional to 6,370.84, 8,790 and 4,134.04

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Solution

The fourth proportional to 6,370.84, 8,790 and 4,134.04 is: 5,703.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,370.84 : 8,790 = 4,134.04 : x
  2. Step 2: Convert to fraction form
    6,370.84/8,790 = 4,134.04/x
  3. Step 3: Cross multiply
    6,370.84x = 8,790 × 4,134.04
  4. Step 4: Simplify right side
    6,370.84x = 36,338,211.60
  5. Step 5: Solve for x
    x = 36,338,211.60/6,370.84
  6. Step 6: Final answer
    x = 5,703.83

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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.