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Finding the Fourth Proportional to 16,980.33, 25,472.91 and 5,294.46

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Solution

The fourth proportional to 16,980.33, 25,472.91 and 5,294.46 is: 7,942.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,980.33 : 25,472.91 = 5,294.46 : x
  2. Step 2: Convert to fraction form
    16,980.33/25,472.91 = 5,294.46/x
  3. Step 3: Cross multiply
    16,980.33x = 25,472.91 × 5,294.46
  4. Step 4: Simplify right side
    16,980.33x = 134,865,303.08
  5. Step 5: Solve for x
    x = 134,865,303.08/16,980.33
  6. Step 6: Final answer
    x = 7,942.44

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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.