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Finding the Fourth Proportional to 61,352.80, 91,980.60 and 33,650.80

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Solution

The fourth proportional to 61,352.80, 91,980.60 and 33,650.80 is: 50,449.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,352.80 : 91,980.60 = 33,650.80 : x
  2. Step 2: Convert to fraction form
    61,352.80/91,980.60 = 33,650.80/x
  3. Step 3: Cross multiply
    61,352.80x = 91,980.60 × 33,650.80
  4. Step 4: Simplify right side
    61,352.80x = 3,095,220,774.48
  5. Step 5: Solve for x
    x = 3,095,220,774.48/61,352.80
  6. Step 6: Final answer
    x = 50,449.54

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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.