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Finding the Fourth Proportional to 26,692.80, 40,136.40 and 26,109.60

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Solution

The fourth proportional to 26,692.80, 40,136.40 and 26,109.60 is: 39,259.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,692.80 : 40,136.40 = 26,109.60 : x
  2. Step 2: Convert to fraction form
    26,692.80/40,136.40 = 26,109.60/x
  3. Step 3: Cross multiply
    26,692.80x = 40,136.40 × 26,109.60
  4. Step 4: Simplify right side
    26,692.80x = 1,047,945,349.44
  5. Step 5: Solve for x
    x = 1,047,945,349.44/26,692.80
  6. Step 6: Final answer
    x = 39,259.48

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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.