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Finding the Fourth Proportional to 17,019.85, 25,529.88 and 5,918.77

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Solution

The fourth proportional to 17,019.85, 25,529.88 and 5,918.77 is: 8,878.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,019.85 : 25,529.88 = 5,918.77 : x
  2. Step 2: Convert to fraction form
    17,019.85/25,529.88 = 5,918.77/x
  3. Step 3: Cross multiply
    17,019.85x = 25,529.88 × 5,918.77
  4. Step 4: Simplify right side
    17,019.85x = 151,105,487.85
  5. Step 5: Solve for x
    x = 151,105,487.85/17,019.85
  6. Step 6: Final answer
    x = 8,878.19

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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.