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Finding the Fourth Proportional to 33,807.20, 50,715.60 and 10,431.20

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Solution

The fourth proportional to 33,807.20, 50,715.60 and 10,431.20 is: 15,648.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,807.20 : 50,715.60 = 10,431.20 : x
  2. Step 2: Convert to fraction form
    33,807.20/50,715.60 = 10,431.20/x
  3. Step 3: Cross multiply
    33,807.20x = 50,715.60 × 10,431.20
  4. Step 4: Simplify right side
    33,807.20x = 529,024,566.72
  5. Step 5: Solve for x
    x = 529,024,566.72/33,807.20
  6. Step 6: Final answer
    x = 15,648.28

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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.