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Finding the Fourth Proportional to 33,499.40, 50,205.90 and 15,931.40

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Solution

The fourth proportional to 33,499.40, 50,205.90 and 15,931.40 is: 23,876.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,499.40 : 50,205.90 = 15,931.40 : x
  2. Step 2: Convert to fraction form
    33,499.40/50,205.90 = 15,931.40/x
  3. Step 3: Cross multiply
    33,499.40x = 50,205.90 × 15,931.40
  4. Step 4: Simplify right side
    33,499.40x = 799,850,275.26
  5. Step 5: Solve for x
    x = 799,850,275.26/33,499.40
  6. Step 6: Final answer
    x = 23,876.56

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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.