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Finding the Fourth Proportional to 6,281.70, 9,425.13 and 2,769.90

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Solution

The fourth proportional to 6,281.70, 9,425.13 and 2,769.90 is: 4,155.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,281.70 : 9,425.13 = 2,769.90 : x
  2. Step 2: Convert to fraction form
    6,281.70/9,425.13 = 2,769.90/x
  3. Step 3: Cross multiply
    6,281.70x = 9,425.13 × 2,769.90
  4. Step 4: Simplify right side
    6,281.70x = 26,106,667.59
  5. Step 5: Solve for x
    x = 26,106,667.59/6,281.70
  6. Step 6: Final answer
    x = 4,155.99

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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.