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Finding the Fourth Proportional to 17,089.60, 25,672.80 and 16,436.80

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Solution

The fourth proportional to 17,089.60, 25,672.80 and 16,436.80 is: 24,692.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,089.60 : 25,672.80 = 16,436.80 : x
  2. Step 2: Convert to fraction form
    17,089.60/25,672.80 = 16,436.80/x
  3. Step 3: Cross multiply
    17,089.60x = 25,672.80 × 16,436.80
  4. Step 4: Simplify right side
    17,089.60x = 421,978,679.04
  5. Step 5: Solve for x
    x = 421,978,679.04/17,089.60
  6. Step 6: Final answer
    x = 24,692.13

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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.