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Finding the Fourth Proportional to 61,779.99, 92,668.96 and 19,662.63

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Solution

The fourth proportional to 61,779.99, 92,668.96 and 19,662.63 is: 29,493.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,779.99 : 92,668.96 = 19,662.63 : x
  2. Step 2: Convert to fraction form
    61,779.99/92,668.96 = 19,662.63/x
  3. Step 3: Cross multiply
    61,779.99x = 92,668.96 × 19,662.63
  4. Step 4: Simplify right side
    61,779.99x = 1,822,115,472.96
  5. Step 5: Solve for x
    x = 1,822,115,472.96/61,779.99
  6. Step 6: Final answer
    x = 29,493.62

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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.