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Finding the Fourth Proportional to 16,696.56, 25,045.92 and 5,602.80

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Solution

The fourth proportional to 16,696.56, 25,045.92 and 5,602.80 is: 8,404.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,696.56 : 25,045.92 = 5,602.80 : x
  2. Step 2: Convert to fraction form
    16,696.56/25,045.92 = 5,602.80/x
  3. Step 3: Cross multiply
    16,696.56x = 25,045.92 × 5,602.80
  4. Step 4: Simplify right side
    16,696.56x = 140,327,280.58
  5. Step 5: Solve for x
    x = 140,327,280.58/16,696.56
  6. Step 6: Final answer
    x = 8,404.56

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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.