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Finding the Fourth Proportional to 18,553.29, 27,829.63 and 5,902.87

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Solution

The fourth proportional to 18,553.29, 27,829.63 and 5,902.87 is: 8,854.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,553.29 : 27,829.63 = 5,902.87 : x
  2. Step 2: Convert to fraction form
    18,553.29/27,829.63 = 5,902.87/x
  3. Step 3: Cross multiply
    18,553.29x = 27,829.63 × 5,902.87
  4. Step 4: Simplify right side
    18,553.29x = 164,274,688.04
  5. Step 5: Solve for x
    x = 164,274,688.04/18,553.29
  6. Step 6: Final answer
    x = 8,854.21

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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.