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Finding the Fourth Proportional to 11,193.90, 16,790.85 and 9,984.30

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Solution

The fourth proportional to 11,193.90, 16,790.85 and 9,984.30 is: 14,976.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,193.90 : 16,790.85 = 9,984.30 : x
  2. Step 2: Convert to fraction form
    11,193.90/16,790.85 = 9,984.30/x
  3. Step 3: Cross multiply
    11,193.90x = 16,790.85 × 9,984.30
  4. Step 4: Simplify right side
    11,193.90x = 167,644,883.66
  5. Step 5: Solve for x
    x = 167,644,883.66/11,193.90
  6. Step 6: Final answer
    x = 14,976.45

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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.