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Finding the Fourth Proportional to 49,879.76, 74,739.99 and 34,915.28

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Solution

The fourth proportional to 49,879.76, 74,739.99 and 34,915.28 is: 52,317.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,879.76 : 74,739.99 = 34,915.28 : x
  2. Step 2: Convert to fraction form
    49,879.76/74,739.99 = 34,915.28/x
  3. Step 3: Cross multiply
    49,879.76x = 74,739.99 × 34,915.28
  4. Step 4: Simplify right side
    49,879.76x = 2,609,567,678.05
  5. Step 5: Solve for x
    x = 2,609,567,678.05/49,879.76
  6. Step 6: Final answer
    x = 52,317.17

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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.