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Finding the Fourth Proportional to 16,750.20, 25,103.70 and 12,835.20

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Solution

The fourth proportional to 16,750.20, 25,103.70 and 12,835.20 is: 19,236.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,750.20 : 25,103.70 = 12,835.20 : x
  2. Step 2: Convert to fraction form
    16,750.20/25,103.70 = 12,835.20/x
  3. Step 3: Cross multiply
    16,750.20x = 25,103.70 × 12,835.20
  4. Step 4: Simplify right side
    16,750.20x = 322,211,010.24
  5. Step 5: Solve for x
    x = 322,211,010.24/16,750.20
  6. Step 6: Final answer
    x = 19,236.25

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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.