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Finding the Fourth Proportional to 16,402.81, 22,635.89 and 8,950.81

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Solution

The fourth proportional to 16,402.81, 22,635.89 and 8,950.81 is: 12,352.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,402.81 : 22,635.89 = 8,950.81 : x
  2. Step 2: Convert to fraction form
    16,402.81/22,635.89 = 8,950.81/x
  3. Step 3: Cross multiply
    16,402.81x = 22,635.89 × 8,950.81
  4. Step 4: Simplify right side
    16,402.81x = 202,609,550.57
  5. Step 5: Solve for x
    x = 202,609,550.57/16,402.81
  6. Step 6: Final answer
    x = 12,352.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.