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Finding the Fourth Proportional to 49,613, 68,466.75 and 28,403.96

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Solution

The fourth proportional to 49,613, 68,466.75 and 28,403.96 is: 39,197.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,613 : 68,466.75 = 28,403.96 : x
  2. Step 2: Convert to fraction form
    49,613/68,466.75 = 28,403.96/x
  3. Step 3: Cross multiply
    49,613x = 68,466.75 × 28,403.96
  4. Step 4: Simplify right side
    49,613x = 1,944,726,828.33
  5. Step 5: Solve for x
    x = 1,944,726,828.33/49,613
  6. Step 6: Final answer
    x = 39,197.93

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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.