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Finding the Fourth Proportional to 31,294.72, 46,942.17 and 9,108.63

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Solution

The fourth proportional to 31,294.72, 46,942.17 and 9,108.63 is: 13,662.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,294.72 : 46,942.17 = 9,108.63 : x
  2. Step 2: Convert to fraction form
    31,294.72/46,942.17 = 9,108.63/x
  3. Step 3: Cross multiply
    31,294.72x = 46,942.17 × 9,108.63
  4. Step 4: Simplify right side
    31,294.72x = 427,578,857.93
  5. Step 5: Solve for x
    x = 427,578,857.93/31,294.72
  6. Step 6: Final answer
    x = 13,662.97

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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.