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Finding the Fourth Proportional to 33,187.20, 49,785.60 and 15,657.60

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Solution

The fourth proportional to 33,187.20, 49,785.60 and 15,657.60 is: 23,488.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,187.20 : 49,785.60 = 15,657.60 : x
  2. Step 2: Convert to fraction form
    33,187.20/49,785.60 = 15,657.60/x
  3. Step 3: Cross multiply
    33,187.20x = 49,785.60 × 15,657.60
  4. Step 4: Simplify right side
    33,187.20x = 779,523,010.56
  5. Step 5: Solve for x
    x = 779,523,010.56/33,187.20
  6. Step 6: Final answer
    x = 23,488.66

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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.