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Finding the Fourth Proportional to 23,855.40, 32,977.80 and 18,217.80

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Solution

The fourth proportional to 23,855.40, 32,977.80 and 18,217.80 is: 25,184.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,855.40 : 32,977.80 = 18,217.80 : x
  2. Step 2: Convert to fraction form
    23,855.40/32,977.80 = 18,217.80/x
  3. Step 3: Cross multiply
    23,855.40x = 32,977.80 × 18,217.80
  4. Step 4: Simplify right side
    23,855.40x = 600,782,964.84
  5. Step 5: Solve for x
    x = 600,782,964.84/23,855.40
  6. Step 6: Final answer
    x = 25,184.36

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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.