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Finding the Fourth Proportional to 23,372.80, 34,986.30 and 16,811.80

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Solution

The fourth proportional to 23,372.80, 34,986.30 and 16,811.80 is: 25,165.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,372.80 : 34,986.30 = 16,811.80 : x
  2. Step 2: Convert to fraction form
    23,372.80/34,986.30 = 16,811.80/x
  3. Step 3: Cross multiply
    23,372.80x = 34,986.30 × 16,811.80
  4. Step 4: Simplify right side
    23,372.80x = 588,182,678.34
  5. Step 5: Solve for x
    x = 588,182,678.34/23,372.80
  6. Step 6: Final answer
    x = 25,165.26

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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.