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Finding the Fourth Proportional to 19,333.36, 28,992.92 and 6,679.89

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Solution

The fourth proportional to 19,333.36, 28,992.92 and 6,679.89 is: 10,017.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,333.36 : 28,992.92 = 6,679.89 : x
  2. Step 2: Convert to fraction form
    19,333.36/28,992.92 = 6,679.89/x
  3. Step 3: Cross multiply
    19,333.36x = 28,992.92 × 6,679.89
  4. Step 4: Simplify right side
    19,333.36x = 193,669,516.38
  5. Step 5: Solve for x
    x = 193,669,516.38/19,333.36
  6. Step 6: Final answer
    x = 10,017.37

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1.5x scale

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.