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Finding the Fourth Proportional to 17,218.25, 25,824.95 and 5,529.95

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Solution

The fourth proportional to 17,218.25, 25,824.95 and 5,529.95 is: 8,294.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,218.25 : 25,824.95 = 5,529.95 : x
  2. Step 2: Convert to fraction form
    17,218.25/25,824.95 = 5,529.95/x
  3. Step 3: Cross multiply
    17,218.25x = 25,824.95 × 5,529.95
  4. Step 4: Simplify right side
    17,218.25x = 142,810,682.25
  5. Step 5: Solve for x
    x = 142,810,682.25/17,218.25
  6. Step 6: Final answer
    x = 8,294.15

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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.