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Finding the Fourth Proportional to 7,766.52, 11,644.78 and 5,658.92

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Solution

The fourth proportional to 7,766.52, 11,644.78 and 5,658.92 is: 8,484.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,766.52 : 11,644.78 = 5,658.92 : x
  2. Step 2: Convert to fraction form
    7,766.52/11,644.78 = 5,658.92/x
  3. Step 3: Cross multiply
    7,766.52x = 11,644.78 × 5,658.92
  4. Step 4: Simplify right side
    7,766.52x = 65,896,878.44
  5. Step 5: Solve for x
    x = 65,896,878.44/7,766.52
  6. Step 6: Final answer
    x = 8,484.74

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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.