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Finding the Fourth Proportional to 17,302.65, 25,936.70 and 8,543.85

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Solution

The fourth proportional to 17,302.65, 25,936.70 and 8,543.85 is: 12,807.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,302.65 : 25,936.70 = 8,543.85 : x
  2. Step 2: Convert to fraction form
    17,302.65/25,936.70 = 8,543.85/x
  3. Step 3: Cross multiply
    17,302.65x = 25,936.70 × 8,543.85
  4. Step 4: Simplify right side
    17,302.65x = 221,599,231.58
  5. Step 5: Solve for x
    x = 221,599,231.58/17,302.65
  6. Step 6: Final answer
    x = 12,807.24

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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.