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Finding the Fourth Proportional to 33,199.72, 45,813.54 and 18,295.72

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Solution

The fourth proportional to 33,199.72, 45,813.54 and 18,295.72 is: 25,246.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,199.72 : 45,813.54 = 18,295.72 : x
  2. Step 2: Convert to fraction form
    33,199.72/45,813.54 = 18,295.72/x
  3. Step 3: Cross multiply
    33,199.72x = 45,813.54 × 18,295.72
  4. Step 4: Simplify right side
    33,199.72x = 838,191,700.05
  5. Step 5: Solve for x
    x = 838,191,700.05/33,199.72
  6. Step 6: Final answer
    x = 25,246.95

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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.