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Finding the Fourth Proportional to 14,523.84, 21,804.84 and 8,611.56

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Solution

The fourth proportional to 14,523.84, 21,804.84 and 8,611.56 is: 12,928.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,523.84 : 21,804.84 = 8,611.56 : x
  2. Step 2: Convert to fraction form
    14,523.84/21,804.84 = 8,611.56/x
  3. Step 3: Cross multiply
    14,523.84x = 21,804.84 × 8,611.56
  4. Step 4: Simplify right side
    14,523.84x = 187,773,687.95
  5. Step 5: Solve for x
    x = 187,773,687.95/14,523.84
  6. Step 6: Final answer
    x = 12,928.65

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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.