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Finding the Fourth Proportional to 11,255.80, 16,883.70 and 10,334.20

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Solution

The fourth proportional to 11,255.80, 16,883.70 and 10,334.20 is: 15,501.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,255.80 : 16,883.70 = 10,334.20 : x
  2. Step 2: Convert to fraction form
    11,255.80/16,883.70 = 10,334.20/x
  3. Step 3: Cross multiply
    11,255.80x = 16,883.70 × 10,334.20
  4. Step 4: Simplify right side
    11,255.80x = 174,479,532.54
  5. Step 5: Solve for x
    x = 174,479,532.54/11,255.80
  6. Step 6: Final answer
    x = 15,501.30

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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.