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Finding the Fourth Proportional to 100,352.50, 150,485 and 33,774.75

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Solution

The fourth proportional to 100,352.50, 150,485 and 33,774.75 is: 50,647.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,352.50 : 150,485 = 33,774.75 : x
  2. Step 2: Convert to fraction form
    100,352.50/150,485 = 33,774.75/x
  3. Step 3: Cross multiply
    100,352.50x = 150,485 × 33,774.75
  4. Step 4: Simplify right side
    100,352.50x = 5,082,593,253.75
  5. Step 5: Solve for x
    x = 5,082,593,253.75/100,352.50
  6. Step 6: Final answer
    x = 50,647.40

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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.