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Finding the Fourth Proportional to 34,857.92, 48,102.79 and 18,942.03

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Solution

The fourth proportional to 34,857.92, 48,102.79 and 18,942.03 is: 26,139.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,857.92 : 48,102.79 = 18,942.03 : x
  2. Step 2: Convert to fraction form
    34,857.92/48,102.79 = 18,942.03/x
  3. Step 3: Cross multiply
    34,857.92x = 48,102.79 × 18,942.03
  4. Step 4: Simplify right side
    34,857.92x = 911,164,491.26
  5. Step 5: Solve for x
    x = 911,164,491.26/34,857.92
  6. Step 6: Final answer
    x = 26,139.38

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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.