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Finding the Fourth Proportional to 33,157.76, 49,749.59 and 12,382.88

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Solution

The fourth proportional to 33,157.76, 49,749.59 and 12,382.88 is: 18,579.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,157.76 : 49,749.59 = 12,382.88 : x
  2. Step 2: Convert to fraction form
    33,157.76/49,749.59 = 12,382.88/x
  3. Step 3: Cross multiply
    33,157.76x = 49,749.59 × 12,382.88
  4. Step 4: Simplify right side
    33,157.76x = 616,042,985.23
  5. Step 5: Solve for x
    x = 616,042,985.23/33,157.76
  6. Step 6: Final answer
    x = 18,579.15

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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.