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Finding the Fourth Proportional to 17,271.23, 25,872.95 and 8,956.74

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Solution

The fourth proportional to 17,271.23, 25,872.95 and 8,956.74 is: 13,417.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,271.23 : 25,872.95 = 8,956.74 : x
  2. Step 2: Convert to fraction form
    17,271.23/25,872.95 = 8,956.74/x
  3. Step 3: Cross multiply
    17,271.23x = 25,872.95 × 8,956.74
  4. Step 4: Simplify right side
    17,271.23x = 231,737,405.60
  5. Step 5: Solve for x
    x = 231,737,405.60/17,271.23
  6. Step 6: Final answer
    x = 13,417.54

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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.