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Finding the Fourth Proportional to 14,498.63, 20,008.10 and 8,212.22

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Solution

The fourth proportional to 14,498.63, 20,008.10 and 8,212.22 is: 11,332.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,498.63 : 20,008.10 = 8,212.22 : x
  2. Step 2: Convert to fraction form
    14,498.63/20,008.10 = 8,212.22/x
  3. Step 3: Cross multiply
    14,498.63x = 20,008.10 × 8,212.22
  4. Step 4: Simplify right side
    14,498.63x = 164,310,918.98
  5. Step 5: Solve for x
    x = 164,310,918.98/14,498.63
  6. Step 6: Final answer
    x = 11,332.86

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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.