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Finding the Fourth Proportional to 49,947.60, 74,910.60 and 21,867.60

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Solution

The fourth proportional to 49,947.60, 74,910.60 and 21,867.60 is: 32,796.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,947.60 : 74,910.60 = 21,867.60 : x
  2. Step 2: Convert to fraction form
    49,947.60/74,910.60 = 21,867.60/x
  3. Step 3: Cross multiply
    49,947.60x = 74,910.60 × 21,867.60
  4. Step 4: Simplify right side
    49,947.60x = 1,638,115,036.56
  5. Step 5: Solve for x
    x = 1,638,115,036.56/49,947.60
  6. Step 6: Final answer
    x = 32,796.67

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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.