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Finding the Fourth Proportional to 17,203.91, 25,813.15 and 9,403.61

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Solution

The fourth proportional to 17,203.91, 25,813.15 and 9,403.61 is: 14,109.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,203.91 : 25,813.15 = 9,403.61 : x
  2. Step 2: Convert to fraction form
    17,203.91/25,813.15 = 9,403.61/x
  3. Step 3: Cross multiply
    17,203.91x = 25,813.15 × 9,403.61
  4. Step 4: Simplify right side
    17,203.91x = 242,736,642.90
  5. Step 5: Solve for x
    x = 242,736,642.90/17,203.91
  6. Step 6: Final answer
    x = 14,109.39

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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.