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Finding the Fourth Proportional to 16,749.20, 25,102.20 and 12,834.20

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Solution

The fourth proportional to 16,749.20, 25,102.20 and 12,834.20 is: 19,234.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,749.20 : 25,102.20 = 12,834.20 : x
  2. Step 2: Convert to fraction form
    16,749.20/25,102.20 = 12,834.20/x
  3. Step 3: Cross multiply
    16,749.20x = 25,102.20 × 12,834.20
  4. Step 4: Simplify right side
    16,749.20x = 322,166,655.24
  5. Step 5: Solve for x
    x = 322,166,655.24/16,749.20
  6. Step 6: Final answer
    x = 19,234.75

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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.