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Finding the Fourth Proportional to 6,461.91, 9,692.55 and 2,079.27

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Solution

The fourth proportional to 6,461.91, 9,692.55 and 2,079.27 is: 3,118.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,461.91 : 9,692.55 = 2,079.27 : x
  2. Step 2: Convert to fraction form
    6,461.91/9,692.55 = 2,079.27/x
  3. Step 3: Cross multiply
    6,461.91x = 9,692.55 × 2,079.27
  4. Step 4: Simplify right side
    6,461.91x = 20,153,428.44
  5. Step 5: Solve for x
    x = 20,153,428.44/6,461.91
  6. Step 6: Final answer
    x = 3,118.80

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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.