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Finding the Fourth Proportional to 10,863.85, 14,992.10 and 5,895.85

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Solution

The fourth proportional to 10,863.85, 14,992.10 and 5,895.85 is: 8,136.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,863.85 : 14,992.10 = 5,895.85 : x
  2. Step 2: Convert to fraction form
    10,863.85/14,992.10 = 5,895.85/x
  3. Step 3: Cross multiply
    10,863.85x = 14,992.10 × 5,895.85
  4. Step 4: Simplify right side
    10,863.85x = 88,391,172.79
  5. Step 5: Solve for x
    x = 88,391,172.79/10,863.85
  6. Step 6: Final answer
    x = 8,136.27

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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.