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Finding the Fourth Proportional to 11,402.98, 17,078.01 and 11,008.75

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Solution

The fourth proportional to 11,402.98, 17,078.01 and 11,008.75 is: 16,487.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,402.98 : 17,078.01 = 11,008.75 : x
  2. Step 2: Convert to fraction form
    11,402.98/17,078.01 = 11,008.75/x
  3. Step 3: Cross multiply
    11,402.98x = 17,078.01 × 11,008.75
  4. Step 4: Simplify right side
    11,402.98x = 188,007,542.59
  5. Step 5: Solve for x
    x = 188,007,542.59/11,402.98
  6. Step 6: Final answer
    x = 16,487.58

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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.