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Finding the Fourth Proportional to 17,912.40, 26,751.42 and 15,251.52

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Solution

The fourth proportional to 17,912.40, 26,751.42 and 15,251.52 is: 22,777.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,912.40 : 26,751.42 = 15,251.52 : x
  2. Step 2: Convert to fraction form
    17,912.40/26,751.42 = 15,251.52/x
  3. Step 3: Cross multiply
    17,912.40x = 26,751.42 × 15,251.52
  4. Step 4: Simplify right side
    17,912.40x = 407,999,817.16
  5. Step 5: Solve for x
    x = 407,999,817.16/17,912.40
  6. Step 6: Final answer
    x = 22,777.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.