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Finding the Fourth Proportional to 33,015.60, 49,539.60 and 25,115.40

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Solution

The fourth proportional to 33,015.60, 49,539.60 and 25,115.40 is: 37,685.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,015.60 : 49,539.60 = 25,115.40 : x
  2. Step 2: Convert to fraction form
    33,015.60/49,539.60 = 25,115.40/x
  3. Step 3: Cross multiply
    33,015.60x = 49,539.60 × 25,115.40
  4. Step 4: Simplify right side
    33,015.60x = 1,244,206,869.84
  5. Step 5: Solve for x
    x = 1,244,206,869.84/33,015.60
  6. Step 6: Final answer
    x = 37,685.42

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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.