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Finding the Fourth Proportional to 14,815.80, 22,238.10 and 8,983.80

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Solution

The fourth proportional to 14,815.80, 22,238.10 and 8,983.80 is: 13,484.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,815.80 : 22,238.10 = 8,983.80 : x
  2. Step 2: Convert to fraction form
    14,815.80/22,238.10 = 8,983.80/x
  3. Step 3: Cross multiply
    14,815.80x = 22,238.10 × 8,983.80
  4. Step 4: Simplify right side
    14,815.80x = 199,782,642.78
  5. Step 5: Solve for x
    x = 199,782,642.78/14,815.80
  6. Step 6: Final answer
    x = 13,484.43

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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.