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Finding the Fourth Proportional to 27,178.88, 40,790.39 and 14,035.01

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Solution

The fourth proportional to 27,178.88, 40,790.39 and 14,035.01 is: 21,063.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,178.88 : 40,790.39 = 14,035.01 : x
  2. Step 2: Convert to fraction form
    27,178.88/40,790.39 = 14,035.01/x
  3. Step 3: Cross multiply
    27,178.88x = 40,790.39 × 14,035.01
  4. Step 4: Simplify right side
    27,178.88x = 572,493,257.43
  5. Step 5: Solve for x
    x = 572,493,257.43/27,178.88
  6. Step 6: Final answer
    x = 21,063.91

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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.