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Finding the Fourth Proportional to 16,861.19, 25,293 and 6,472.94

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Solution

The fourth proportional to 16,861.19, 25,293 and 6,472.94 is: 9,709.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,861.19 : 25,293 = 6,472.94 : x
  2. Step 2: Convert to fraction form
    16,861.19/25,293 = 6,472.94/x
  3. Step 3: Cross multiply
    16,861.19x = 25,293 × 6,472.94
  4. Step 4: Simplify right side
    16,861.19x = 163,720,071.42
  5. Step 5: Solve for x
    x = 163,720,071.42/16,861.19
  6. Step 6: Final answer
    x = 9,709.88

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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.