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Finding the Fourth Proportional to 17,957.53, 26,922.86 and 12,394.99

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Solution

The fourth proportional to 17,957.53, 26,922.86 and 12,394.99 is: 18,583.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,957.53 : 26,922.86 = 12,394.99 : x
  2. Step 2: Convert to fraction form
    17,957.53/26,922.86 = 12,394.99/x
  3. Step 3: Cross multiply
    17,957.53x = 26,922.86 × 12,394.99
  4. Step 4: Simplify right side
    17,957.53x = 333,708,383.88
  5. Step 5: Solve for x
    x = 333,708,383.88/17,957.53
  6. Step 6: Final answer
    x = 18,583.21

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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.