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Finding the Fourth Proportional to 9,206.70, 13,812.77 and 4,279.29

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Solution

The fourth proportional to 9,206.70, 13,812.77 and 4,279.29 is: 6,420.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,206.70 : 13,812.77 = 4,279.29 : x
  2. Step 2: Convert to fraction form
    9,206.70/13,812.77 = 4,279.29/x
  3. Step 3: Cross multiply
    9,206.70x = 13,812.77 × 4,279.29
  4. Step 4: Simplify right side
    9,206.70x = 59,108,848.53
  5. Step 5: Solve for x
    x = 59,108,848.53/9,206.70
  6. Step 6: Final answer
    x = 6,420.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.