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Finding the Fourth Proportional to 7,331.90, 10,994.73 and 2,828.22

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Solution

The fourth proportional to 7,331.90, 10,994.73 and 2,828.22 is: 4,241.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,331.90 : 10,994.73 = 2,828.22 : x
  2. Step 2: Convert to fraction form
    7,331.90/10,994.73 = 2,828.22/x
  3. Step 3: Cross multiply
    7,331.90x = 10,994.73 × 2,828.22
  4. Step 4: Simplify right side
    7,331.90x = 31,095,515.28
  5. Step 5: Solve for x
    x = 31,095,515.28/7,331.90
  6. Step 6: Final answer
    x = 4,241.13

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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.