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Finding the Fourth Proportional to 7,906.29, 10,910.13 and 4,369.22

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Solution

The fourth proportional to 7,906.29, 10,910.13 and 4,369.22 is: 6,029.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,906.29 : 10,910.13 = 4,369.22 : x
  2. Step 2: Convert to fraction form
    7,906.29/10,910.13 = 4,369.22/x
  3. Step 3: Cross multiply
    7,906.29x = 10,910.13 × 4,369.22
  4. Step 4: Simplify right side
    7,906.29x = 47,668,728.18
  5. Step 5: Solve for x
    x = 47,668,728.18/7,906.29
  6. Step 6: Final answer
    x = 6,029.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.