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Finding the Fourth Proportional to 18,493.93, 27,742.29 and 5,346.40

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Solution

The fourth proportional to 18,493.93, 27,742.29 and 5,346.40 is: 8,020.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,493.93 : 27,742.29 = 5,346.40 : x
  2. Step 2: Convert to fraction form
    18,493.93/27,742.29 = 5,346.40/x
  3. Step 3: Cross multiply
    18,493.93x = 27,742.29 × 5,346.40
  4. Step 4: Simplify right side
    18,493.93x = 148,321,379.26
  5. Step 5: Solve for x
    x = 148,321,379.26/18,493.93
  6. Step 6: Final answer
    x = 8,020.00

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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.