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Finding the Fourth Proportional to 14,518.88, 21,791.68 and 8,983.03

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Solution

The fourth proportional to 14,518.88, 21,791.68 and 8,983.03 is: 13,482.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,518.88 : 21,791.68 = 8,983.03 : x
  2. Step 2: Convert to fraction form
    14,518.88/21,791.68 = 8,983.03/x
  3. Step 3: Cross multiply
    14,518.88x = 21,791.68 × 8,983.03
  4. Step 4: Simplify right side
    14,518.88x = 195,755,315.19
  5. Step 5: Solve for x
    x = 195,755,315.19/14,518.88
  6. Step 6: Final answer
    x = 13,482.81

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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.