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Finding the Fourth Proportional to 14,665.91, 21,998.84 and 4,135.91

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Solution

The fourth proportional to 14,665.91, 21,998.84 and 4,135.91 is: 6,203.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,665.91 : 21,998.84 = 4,135.91 : x
  2. Step 2: Convert to fraction form
    14,665.91/21,998.84 = 4,135.91/x
  3. Step 3: Cross multiply
    14,665.91x = 21,998.84 × 4,135.91
  4. Step 4: Simplify right side
    14,665.91x = 90,985,238.68
  5. Step 5: Solve for x
    x = 90,985,238.68/14,665.91
  6. Step 6: Final answer
    x = 6,203.86

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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.