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Finding the Fourth Proportional to 14,893.55, 20,553.15 and 8,087.59

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Solution

The fourth proportional to 14,893.55, 20,553.15 and 8,087.59 is: 11,160.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,893.55 : 20,553.15 = 8,087.59 : x
  2. Step 2: Convert to fraction form
    14,893.55/20,553.15 = 8,087.59/x
  3. Step 3: Cross multiply
    14,893.55x = 20,553.15 × 8,087.59
  4. Step 4: Simplify right side
    14,893.55x = 166,225,399.03
  5. Step 5: Solve for x
    x = 166,225,399.03/14,893.55
  6. Step 6: Final answer
    x = 11,160.90

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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.