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Finding the Fourth Proportional to 33,803.20, 50,709.60 and 10,427.20

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Solution

The fourth proportional to 33,803.20, 50,709.60 and 10,427.20 is: 15,642.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,803.20 : 50,709.60 = 10,427.20 : x
  2. Step 2: Convert to fraction form
    33,803.20/50,709.60 = 10,427.20/x
  3. Step 3: Cross multiply
    33,803.20x = 50,709.60 × 10,427.20
  4. Step 4: Simplify right side
    33,803.20x = 528,759,141.12
  5. Step 5: Solve for x
    x = 528,759,141.12/33,803.20
  6. Step 6: Final answer
    x = 15,642.28

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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.