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Finding the Fourth Proportional to 14,504.57, 21,755.28 and 8,956.42

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Solution

The fourth proportional to 14,504.57, 21,755.28 and 8,956.42 is: 13,433.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,504.57 : 21,755.28 = 8,956.42 : x
  2. Step 2: Convert to fraction form
    14,504.57/21,755.28 = 8,956.42/x
  3. Step 3: Cross multiply
    14,504.57x = 21,755.28 × 8,956.42
  4. Step 4: Simplify right side
    14,504.57x = 194,849,370.51
  5. Step 5: Solve for x
    x = 194,849,370.51/14,504.57
  6. Step 6: Final answer
    x = 13,433.66

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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.