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Finding the Fourth Proportional to 18,559.91, 27,839.45 and 4,520.00

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Solution

The fourth proportional to 18,559.91, 27,839.45 and 4,520.00 is: 6,779.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,559.91 : 27,839.45 = 4,520.00 : x
  2. Step 2: Convert to fraction form
    18,559.91/27,839.45 = 4,520.00/x
  3. Step 3: Cross multiply
    18,559.91x = 27,839.45 × 4,520.00
  4. Step 4: Simplify right side
    18,559.91x = 125,834,394.90
  5. Step 5: Solve for x
    x = 125,834,394.90/18,559.91
  6. Step 6: Final answer
    x = 6,779.90

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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.