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Finding the Fourth Proportional to 18,586.40, 25,601.88 and 17,361.68

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Solution

The fourth proportional to 18,586.40, 25,601.88 and 17,361.68 is: 23,914.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,586.40 : 25,601.88 = 17,361.68 : x
  2. Step 2: Convert to fraction form
    18,586.40/25,601.88 = 17,361.68/x
  3. Step 3: Cross multiply
    18,586.40x = 25,601.88 × 17,361.68
  4. Step 4: Simplify right side
    18,586.40x = 444,491,647.96
  5. Step 5: Solve for x
    x = 444,491,647.96/18,586.40
  6. Step 6: Final answer
    x = 23,914.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.