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Finding the Fourth Proportional to 40,953.78, 61,391.75 and 16,009.82

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Solution

The fourth proportional to 40,953.78, 61,391.75 and 16,009.82 is: 23,999.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,953.78 : 61,391.75 = 16,009.82 : x
  2. Step 2: Convert to fraction form
    40,953.78/61,391.75 = 16,009.82/x
  3. Step 3: Cross multiply
    40,953.78x = 61,391.75 × 16,009.82
  4. Step 4: Simplify right side
    40,953.78x = 982,870,866.99
  5. Step 5: Solve for x
    x = 982,870,866.99/40,953.78
  6. Step 6: Final answer
    x = 23,999.52

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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.