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Finding the Fourth Proportional to 38,039.94, 57,063.18 and 9,959.88

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Solution

The fourth proportional to 38,039.94, 57,063.18 and 9,959.88 is: 14,940.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,039.94 : 57,063.18 = 9,959.88 : x
  2. Step 2: Convert to fraction form
    38,039.94/57,063.18 = 9,959.88/x
  3. Step 3: Cross multiply
    38,039.94x = 57,063.18 × 9,959.88
  4. Step 4: Simplify right side
    38,039.94x = 568,342,425.22
  5. Step 5: Solve for x
    x = 568,342,425.22/38,039.94
  6. Step 6: Final answer
    x = 14,940.68

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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.