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Finding the Fourth Proportional to 14,893.96, 20,553.97 and 8,521.12

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Solution

The fourth proportional to 14,893.96, 20,553.97 and 8,521.12 is: 11,759.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,893.96 : 20,553.97 = 8,521.12 : x
  2. Step 2: Convert to fraction form
    14,893.96/20,553.97 = 8,521.12/x
  3. Step 3: Cross multiply
    14,893.96x = 20,553.97 × 8,521.12
  4. Step 4: Simplify right side
    14,893.96x = 175,142,772.16
  5. Step 5: Solve for x
    x = 175,142,772.16/14,893.96
  6. Step 6: Final answer
    x = 11,759.32

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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.