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Finding the Fourth Proportional to 33,980.81, 50,955.37 and 12,924.77

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Solution

The fourth proportional to 33,980.81, 50,955.37 and 12,924.77 is: 19,381.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,980.81 : 50,955.37 = 12,924.77 : x
  2. Step 2: Convert to fraction form
    33,980.81/50,955.37 = 12,924.77/x
  3. Step 3: Cross multiply
    33,980.81x = 50,955.37 × 12,924.77
  4. Step 4: Simplify right side
    33,980.81x = 658,586,150.43
  5. Step 5: Solve for x
    x = 658,586,150.43/33,980.81
  6. Step 6: Final answer
    x = 19,381.12

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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.