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Finding the Fourth Proportional to 14,093.78, 19,448.19 and 8,125.90

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Solution

The fourth proportional to 14,093.78, 19,448.19 and 8,125.90 is: 11,213.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,093.78 : 19,448.19 = 8,125.90 : x
  2. Step 2: Convert to fraction form
    14,093.78/19,448.19 = 8,125.90/x
  3. Step 3: Cross multiply
    14,093.78x = 19,448.19 × 8,125.90
  4. Step 4: Simplify right side
    14,093.78x = 158,033,998.50
  5. Step 5: Solve for x
    x = 158,033,998.50/14,093.78
  6. Step 6: Final answer
    x = 11,213.04

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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.