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Finding the Fourth Proportional to 16,940.20, 25,410.30 and 16,709.80

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Solution

The fourth proportional to 16,940.20, 25,410.30 and 16,709.80 is: 25,064.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,940.20 : 25,410.30 = 16,709.80 : x
  2. Step 2: Convert to fraction form
    16,940.20/25,410.30 = 16,709.80/x
  3. Step 3: Cross multiply
    16,940.20x = 25,410.30 × 16,709.80
  4. Step 4: Simplify right side
    16,940.20x = 424,601,030.94
  5. Step 5: Solve for x
    x = 424,601,030.94/16,940.20
  6. Step 6: Final answer
    x = 25,064.70

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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.