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Finding the Fourth Proportional to 18,539.68, 27,792.24 and 9,294.88

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Solution

The fourth proportional to 18,539.68, 27,792.24 and 9,294.88 is: 13,933.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,539.68 : 27,792.24 = 9,294.88 : x
  2. Step 2: Convert to fraction form
    18,539.68/27,792.24 = 9,294.88/x
  3. Step 3: Cross multiply
    18,539.68x = 27,792.24 × 9,294.88
  4. Step 4: Simplify right side
    18,539.68x = 258,325,535.73
  5. Step 5: Solve for x
    x = 258,325,535.73/18,539.68
  6. Step 6: Final answer
    x = 13,933.66

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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.