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Finding the Fourth Proportional to 18,796.23, 28,185.51 and 10,900.99

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Solution

The fourth proportional to 18,796.23, 28,185.51 and 10,900.99 is: 16,346.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,796.23 : 28,185.51 = 10,900.99 : x
  2. Step 2: Convert to fraction form
    18,796.23/28,185.51 = 10,900.99/x
  3. Step 3: Cross multiply
    18,796.23x = 28,185.51 × 10,900.99
  4. Step 4: Simplify right side
    18,796.23x = 307,249,933.07
  5. Step 5: Solve for x
    x = 307,249,933.07/18,796.23
  6. Step 6: Final answer
    x = 16,346.36

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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.