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Finding the Fourth Proportional to 11,994.50, 17,999.04 and 11,003.06

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Solution

The fourth proportional to 11,994.50, 17,999.04 and 11,003.06 is: 16,511.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,994.50 : 17,999.04 = 11,003.06 : x
  2. Step 2: Convert to fraction form
    11,994.50/17,999.04 = 11,003.06/x
  3. Step 3: Cross multiply
    11,994.50x = 17,999.04 × 11,003.06
  4. Step 4: Simplify right side
    11,994.50x = 198,044,427.07
  5. Step 5: Solve for x
    x = 198,044,427.07/11,994.50
  6. Step 6: Final answer
    x = 16,511.28

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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.