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Finding the Fourth Proportional to 29,696.81, 40,981.60 and 16,268.54

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Solution

The fourth proportional to 29,696.81, 40,981.60 and 16,268.54 is: 22,450.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,696.81 : 40,981.60 = 16,268.54 : x
  2. Step 2: Convert to fraction form
    29,696.81/40,981.60 = 16,268.54/x
  3. Step 3: Cross multiply
    29,696.81x = 40,981.60 × 16,268.54
  4. Step 4: Simplify right side
    29,696.81x = 666,710,860.65
  5. Step 5: Solve for x
    x = 666,710,860.65/29,696.81
  6. Step 6: Final answer
    x = 22,450.59

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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.