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Finding the Fourth Proportional to 17,246.70, 25,870.05 and 15,885.90

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Solution

The fourth proportional to 17,246.70, 25,870.05 and 15,885.90 is: 23,828.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,246.70 : 25,870.05 = 15,885.90 : x
  2. Step 2: Convert to fraction form
    17,246.70/25,870.05 = 15,885.90/x
  3. Step 3: Cross multiply
    17,246.70x = 25,870.05 × 15,885.90
  4. Step 4: Simplify right side
    17,246.70x = 410,969,027.30
  5. Step 5: Solve for x
    x = 410,969,027.30/17,246.70
  6. Step 6: Final answer
    x = 23,828.85

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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.