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Finding the Fourth Proportional to 18,004.18, 27,003.54 and 6,916.09

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Solution

The fourth proportional to 18,004.18, 27,003.54 and 6,916.09 is: 10,373.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,004.18 : 27,003.54 = 6,916.09 : x
  2. Step 2: Convert to fraction form
    18,004.18/27,003.54 = 6,916.09/x
  3. Step 3: Cross multiply
    18,004.18x = 27,003.54 × 6,916.09
  4. Step 4: Simplify right side
    18,004.18x = 186,758,912.96
  5. Step 5: Solve for x
    x = 186,758,912.96/18,004.18
  6. Step 6: Final answer
    x = 10,373.09

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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.