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Finding the Fourth Proportional to 59,779.12, 89,668.56 and 18,226

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Solution

The fourth proportional to 59,779.12, 89,668.56 and 18,226 is: 27,338.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,779.12 : 89,668.56 = 18,226 : x
  2. Step 2: Convert to fraction form
    59,779.12/89,668.56 = 18,226/x
  3. Step 3: Cross multiply
    59,779.12x = 89,668.56 × 18,226
  4. Step 4: Simplify right side
    59,779.12x = 1,634,299,174.56
  5. Step 5: Solve for x
    x = 1,634,299,174.56/59,779.12
  6. Step 6: Final answer
    x = 27,338.96

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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.