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Finding the Fourth Proportional to 19,793.88, 27,314.12 and 10,839.93

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Solution

The fourth proportional to 19,793.88, 27,314.12 and 10,839.93 is: 14,958.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,793.88 : 27,314.12 = 10,839.93 : x
  2. Step 2: Convert to fraction form
    19,793.88/27,314.12 = 10,839.93/x
  3. Step 3: Cross multiply
    19,793.88x = 27,314.12 × 10,839.93
  4. Step 4: Simplify right side
    19,793.88x = 296,083,094.61
  5. Step 5: Solve for x
    x = 296,083,094.61/19,793.88
  6. Step 6: Final answer
    x = 14,958.32

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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.