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Finding the Fourth Proportional to 14,616.12, 21,927.96 and 8,379.12

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Solution

The fourth proportional to 14,616.12, 21,927.96 and 8,379.12 is: 12,570.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,616.12 : 21,927.96 = 8,379.12 : x
  2. Step 2: Convert to fraction form
    14,616.12/21,927.96 = 8,379.12/x
  3. Step 3: Cross multiply
    14,616.12x = 21,927.96 × 8,379.12
  4. Step 4: Simplify right side
    14,616.12x = 183,737,008.20
  5. Step 5: Solve for x
    x = 183,737,008.20/14,616.12
  6. Step 6: Final answer
    x = 12,570.85

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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.