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Finding the Fourth Proportional to 14,367.68, 19,830.13 and 8,992.61

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Solution

The fourth proportional to 14,367.68, 19,830.13 and 8,992.61 is: 12,411.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,367.68 : 19,830.13 = 8,992.61 : x
  2. Step 2: Convert to fraction form
    14,367.68/19,830.13 = 8,992.61/x
  3. Step 3: Cross multiply
    14,367.68x = 19,830.13 × 8,992.61
  4. Step 4: Simplify right side
    14,367.68x = 178,324,652.43
  5. Step 5: Solve for x
    x = 178,324,652.43/14,367.68
  6. Step 6: Final answer
    x = 12,411.51

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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.