Home / 49,660.06-74,489.46-12,220.60

Finding the Fourth Proportional to 49,660.06, 74,489.46 and 12,220.60

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Solution

The fourth proportional to 49,660.06, 74,489.46 and 12,220.60 is: 18,330.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,660.06 : 74,489.46 = 12,220.60 : x
  2. Step 2: Convert to fraction form
    49,660.06/74,489.46 = 12,220.60/x
  3. Step 3: Cross multiply
    49,660.06x = 74,489.46 × 12,220.60
  4. Step 4: Simplify right side
    49,660.06x = 910,305,894.88
  5. Step 5: Solve for x
    x = 910,305,894.88/49,660.06
  6. Step 6: Final answer
    x = 18,330.74

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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.