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Finding the Fourth Proportional to 18,116, 27,173.90 and 11,002.04

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Solution

The fourth proportional to 18,116, 27,173.90 and 11,002.04 is: 16,503.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,116 : 27,173.90 = 11,002.04 : x
  2. Step 2: Convert to fraction form
    18,116/27,173.90 = 11,002.04/x
  3. Step 3: Cross multiply
    18,116x = 27,173.90 × 11,002.04
  4. Step 4: Simplify right side
    18,116x = 298,968,334.76
  5. Step 5: Solve for x
    x = 298,968,334.76/18,116
  6. Step 6: Final answer
    x = 16,503.00

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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.