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Finding the Fourth Proportional to 25,954.56, 38,956.08 and 11,922.16

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Solution

The fourth proportional to 25,954.56, 38,956.08 and 11,922.16 is: 17,894.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,954.56 : 38,956.08 = 11,922.16 : x
  2. Step 2: Convert to fraction form
    25,954.56/38,956.08 = 11,922.16/x
  3. Step 3: Cross multiply
    25,954.56x = 38,956.08 × 11,922.16
  4. Step 4: Simplify right side
    25,954.56x = 464,440,618.73
  5. Step 5: Solve for x
    x = 464,440,618.73/25,954.56
  6. Step 6: Final answer
    x = 17,894.37

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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.