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Finding the Fourth Proportional to 17,719.36, 26,586.36 and 8,956.84

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Solution

The fourth proportional to 17,719.36, 26,586.36 and 8,956.84 is: 13,438.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,719.36 : 26,586.36 = 8,956.84 : x
  2. Step 2: Convert to fraction form
    17,719.36/26,586.36 = 8,956.84/x
  3. Step 3: Cross multiply
    17,719.36x = 26,586.36 × 8,956.84
  4. Step 4: Simplify right side
    17,719.36x = 238,129,772.70
  5. Step 5: Solve for x
    x = 238,129,772.70/17,719.36
  6. Step 6: Final answer
    x = 13,438.96

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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.