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Finding the Fourth Proportional to 49,850.70, 74,750.40 and 14,785.80

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Solution

The fourth proportional to 49,850.70, 74,750.40 and 14,785.80 is: 22,171.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,850.70 : 74,750.40 = 14,785.80 : x
  2. Step 2: Convert to fraction form
    49,850.70/74,750.40 = 14,785.80/x
  3. Step 3: Cross multiply
    49,850.70x = 74,750.40 × 14,785.80
  4. Step 4: Simplify right side
    49,850.70x = 1,105,244,464.32
  5. Step 5: Solve for x
    x = 1,105,244,464.32/49,850.70
  6. Step 6: Final answer
    x = 22,171.09

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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.