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Finding the Fourth Proportional to 17,138.03, 25,690.64 and 8,368.16

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Solution

The fourth proportional to 17,138.03, 25,690.64 and 8,368.16 is: 12,544.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,138.03 : 25,690.64 = 8,368.16 : x
  2. Step 2: Convert to fraction form
    17,138.03/25,690.64 = 8,368.16/x
  3. Step 3: Cross multiply
    17,138.03x = 25,690.64 × 8,368.16
  4. Step 4: Simplify right side
    17,138.03x = 214,983,215.73
  5. Step 5: Solve for x
    x = 214,983,215.73/17,138.03
  6. Step 6: Final answer
    x = 12,544.22

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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.