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Finding the Fourth Proportional to 30,133.92, 41,585.88 and 18,194.94

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Solution

The fourth proportional to 30,133.92, 41,585.88 and 18,194.94 is: 25,109.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,133.92 : 41,585.88 = 18,194.94 : x
  2. Step 2: Convert to fraction form
    30,133.92/41,585.88 = 18,194.94/x
  3. Step 3: Cross multiply
    30,133.92x = 41,585.88 × 18,194.94
  4. Step 4: Simplify right side
    30,133.92x = 756,652,591.45
  5. Step 5: Solve for x
    x = 756,652,591.45/30,133.92
  6. Step 6: Final answer
    x = 25,109.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.