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Finding the Fourth Proportional to 10,621.42, 14,658.33 and 6,372.67

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Solution

The fourth proportional to 10,621.42, 14,658.33 and 6,372.67 is: 8,794.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,621.42 : 14,658.33 = 6,372.67 : x
  2. Step 2: Convert to fraction form
    10,621.42/14,658.33 = 6,372.67/x
  3. Step 3: Cross multiply
    10,621.42x = 14,658.33 × 6,372.67
  4. Step 4: Simplify right side
    10,621.42x = 93,412,626.55
  5. Step 5: Solve for x
    x = 93,412,626.55/10,621.42
  6. Step 6: Final answer
    x = 8,794.74

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