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Finding the Fourth Proportional to 18,796.17, 28,185.42 and 10,900.93

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Solution

The fourth proportional to 18,796.17, 28,185.42 and 10,900.93 is: 16,346.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,796.17 : 28,185.42 = 10,900.93 : x
  2. Step 2: Convert to fraction form
    18,796.17/28,185.42 = 10,900.93/x
  3. Step 3: Cross multiply
    18,796.17x = 28,185.42 × 10,900.93
  4. Step 4: Simplify right side
    18,796.17x = 307,247,149.51
  5. Step 5: Solve for x
    x = 307,247,149.51/18,796.17
  6. Step 6: Final answer
    x = 16,346.27

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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.