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Finding the Fourth Proportional to 13,904.10, 19,193.87 and 8,874.98

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Solution

The fourth proportional to 13,904.10, 19,193.87 and 8,874.98 is: 12,251.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,904.10 : 19,193.87 = 8,874.98 : x
  2. Step 2: Convert to fraction form
    13,904.10/19,193.87 = 8,874.98/x
  3. Step 3: Cross multiply
    13,904.10x = 19,193.87 × 8,874.98
  4. Step 4: Simplify right side
    13,904.10x = 170,345,212.37
  5. Step 5: Solve for x
    x = 170,345,212.37/13,904.10
  6. Step 6: Final answer
    x = 12,251.44

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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.