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Finding the Fourth Proportional to 49,604.79, 74,405.62 and 12,164.97

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Solution

The fourth proportional to 49,604.79, 74,405.62 and 12,164.97 is: 18,247.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,604.79 : 74,405.62 = 12,164.97 : x
  2. Step 2: Convert to fraction form
    49,604.79/74,405.62 = 12,164.97/x
  3. Step 3: Cross multiply
    49,604.79x = 74,405.62 × 12,164.97
  4. Step 4: Simplify right side
    49,604.79x = 905,142,135.13
  5. Step 5: Solve for x
    x = 905,142,135.13/49,604.79
  6. Step 6: Final answer
    x = 18,247.07

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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.