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Finding the Fourth Proportional to 14,472.20, 21,709.88 and 4,609.18

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Solution

The fourth proportional to 14,472.20, 21,709.88 and 4,609.18 is: 6,914.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,472.20 : 21,709.88 = 4,609.18 : x
  2. Step 2: Convert to fraction form
    14,472.20/21,709.88 = 4,609.18/x
  3. Step 3: Cross multiply
    14,472.20x = 21,709.88 × 4,609.18
  4. Step 4: Simplify right side
    14,472.20x = 100,064,766.07
  5. Step 5: Solve for x
    x = 100,064,766.07/14,472.20
  6. Step 6: Final answer
    x = 6,914.27

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.