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Finding the Fourth Proportional to 17,125.75, 25,692.95 and 4,813.75

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Solution

The fourth proportional to 17,125.75, 25,692.95 and 4,813.75 is: 7,221.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,125.75 : 25,692.95 = 4,813.75 : x
  2. Step 2: Convert to fraction form
    17,125.75/25,692.95 = 4,813.75/x
  3. Step 3: Cross multiply
    17,125.75x = 25,692.95 × 4,813.75
  4. Step 4: Simplify right side
    17,125.75x = 123,679,438.06
  5. Step 5: Solve for x
    x = 123,679,438.06/17,125.75
  6. Step 6: Final answer
    x = 7,221.84

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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.