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Finding the Fourth Proportional to 27,999.68, 41,968.53 and 11,354.78

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Solution

The fourth proportional to 27,999.68, 41,968.53 and 11,354.78 is: 17,019.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,999.68 : 41,968.53 = 11,354.78 : x
  2. Step 2: Convert to fraction form
    27,999.68/41,968.53 = 11,354.78/x
  3. Step 3: Cross multiply
    27,999.68x = 41,968.53 × 11,354.78
  4. Step 4: Simplify right side
    27,999.68x = 476,543,529.99
  5. Step 5: Solve for x
    x = 476,543,529.99/27,999.68
  6. Step 6: Final answer
    x = 17,019.61

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1.5x scale

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.