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Finding the Fourth Proportional to 61,779.92, 85,263.03 and 34,565.90

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Solution

The fourth proportional to 61,779.92, 85,263.03 and 34,565.90 is: 47,704.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,779.92 : 85,263.03 = 34,565.90 : x
  2. Step 2: Convert to fraction form
    61,779.92/85,263.03 = 34,565.90/x
  3. Step 3: Cross multiply
    61,779.92x = 85,263.03 × 34,565.90
  4. Step 4: Simplify right side
    61,779.92x = 2,947,192,942.36
  5. Step 5: Solve for x
    x = 2,947,192,942.36/61,779.92
  6. Step 6: Final answer
    x = 47,704.71

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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.