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Finding the Fourth Proportional to 8,651.53, 11,929.44 and 6,763.42

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Solution

The fourth proportional to 8,651.53, 11,929.44 and 6,763.42 is: 9,325.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,651.53 : 11,929.44 = 6,763.42 : x
  2. Step 2: Convert to fraction form
    8,651.53/11,929.44 = 6,763.42/x
  3. Step 3: Cross multiply
    8,651.53x = 11,929.44 × 6,763.42
  4. Step 4: Simplify right side
    8,651.53x = 80,683,813.08
  5. Step 5: Solve for x
    x = 80,683,813.08/8,651.53
  6. Step 6: Final answer
    x = 9,325.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.