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Finding the Fourth Proportional to 69,273.48, 103,899.96 and 19,348.32

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Solution

The fourth proportional to 69,273.48, 103,899.96 and 19,348.32 is: 29,019.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,273.48 : 103,899.96 = 19,348.32 : x
  2. Step 2: Convert to fraction form
    69,273.48/103,899.96 = 19,348.32/x
  3. Step 3: Cross multiply
    69,273.48x = 103,899.96 × 19,348.32
  4. Step 4: Simplify right side
    69,273.48x = 2,010,289,674.07
  5. Step 5: Solve for x
    x = 2,010,289,674.07/69,273.48
  6. Step 6: Final answer
    x = 29,019.61

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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.