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Finding the Fourth Proportional to 6,429.83, 8,874.89 and 3,779.00

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Solution

The fourth proportional to 6,429.83, 8,874.89 and 3,779.00 is: 5,216.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,429.83 : 8,874.89 = 3,779.00 : x
  2. Step 2: Convert to fraction form
    6,429.83/8,874.89 = 3,779.00/x
  3. Step 3: Cross multiply
    6,429.83x = 8,874.89 × 3,779.00
  4. Step 4: Simplify right side
    6,429.83x = 33,538,174.38
  5. Step 5: Solve for x
    x = 33,538,174.38/6,429.83
  6. Step 6: Final answer
    x = 5,216.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.