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Finding the Fourth Proportional to 54,793.08, 82,189.64 and 13,240.08

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Solution

The fourth proportional to 54,793.08, 82,189.64 and 13,240.08 is: 19,860.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,793.08 : 82,189.64 = 13,240.08 : x
  2. Step 2: Convert to fraction form
    54,793.08/82,189.64 = 13,240.08/x
  3. Step 3: Cross multiply
    54,793.08x = 82,189.64 × 13,240.08
  4. Step 4: Simplify right side
    54,793.08x = 1,088,197,408.77
  5. Step 5: Solve for x
    x = 1,088,197,408.77/54,793.08
  6. Step 6: Final answer
    x = 19,860.12

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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.