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Finding the Fourth Proportional to 34,695.44, 47,879.82 and 18,779.88

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Solution

The fourth proportional to 34,695.44, 47,879.82 and 18,779.88 is: 25,916.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,695.44 : 47,879.82 = 18,779.88 : x
  2. Step 2: Convert to fraction form
    34,695.44/47,879.82 = 18,779.88/x
  3. Step 3: Cross multiply
    34,695.44x = 47,879.82 × 18,779.88
  4. Step 4: Simplify right side
    34,695.44x = 899,177,274.02
  5. Step 5: Solve for x
    x = 899,177,274.02/34,695.44
  6. Step 6: Final answer
    x = 25,916.30

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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.