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Finding the Fourth Proportional to 9,940.92, 14,910.42 and 3,015.48

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Solution

The fourth proportional to 9,940.92, 14,910.42 and 3,015.48 is: 4,522.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,940.92 : 14,910.42 = 3,015.48 : x
  2. Step 2: Convert to fraction form
    9,940.92/14,910.42 = 3,015.48/x
  3. Step 3: Cross multiply
    9,940.92x = 14,910.42 × 3,015.48
  4. Step 4: Simplify right side
    9,940.92x = 44,962,073.30
  5. Step 5: Solve for x
    x = 44,962,073.30/9,940.92
  6. Step 6: Final answer
    x = 4,522.93

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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.