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Finding the Fourth Proportional to 15,311.20, 22,980.30 and 9,063.40

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Solution

The fourth proportional to 15,311.20, 22,980.30 and 9,063.40 is: 13,603.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,311.20 : 22,980.30 = 9,063.40 : x
  2. Step 2: Convert to fraction form
    15,311.20/22,980.30 = 9,063.40/x
  3. Step 3: Cross multiply
    15,311.20x = 22,980.30 × 9,063.40
  4. Step 4: Simplify right side
    15,311.20x = 208,279,651.02
  5. Step 5: Solve for x
    x = 208,279,651.02/15,311.20
  6. Step 6: Final answer
    x = 13,603.09

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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.