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Finding the Fourth Proportional to 6,658.94, 9,986.39 and 2,762.44

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Solution

The fourth proportional to 6,658.94, 9,986.39 and 2,762.44 is: 4,142.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,658.94 : 9,986.39 = 2,762.44 : x
  2. Step 2: Convert to fraction form
    6,658.94/9,986.39 = 2,762.44/x
  3. Step 3: Cross multiply
    6,658.94x = 9,986.39 × 2,762.44
  4. Step 4: Simplify right side
    6,658.94x = 27,586,774.77
  5. Step 5: Solve for x
    x = 27,586,774.77/6,658.94
  6. Step 6: Final answer
    x = 4,142.82

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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.