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Finding the Fourth Proportional to 34,857.63, 48,102.90 and 18,942.14

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Solution

The fourth proportional to 34,857.63, 48,102.90 and 18,942.14 is: 26,139.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,857.63 : 48,102.90 = 18,942.14 : x
  2. Step 2: Convert to fraction form
    34,857.63/48,102.90 = 18,942.14/x
  3. Step 3: Cross multiply
    34,857.63x = 48,102.90 × 18,942.14
  4. Step 4: Simplify right side
    34,857.63x = 911,171,625.69
  5. Step 5: Solve for x
    x = 911,171,625.69/34,857.63
  6. Step 6: Final answer
    x = 26,139.80

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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.