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Finding the Fourth Proportional to 43,957.78, 65,939.70 and 17,662.54

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Solution

The fourth proportional to 43,957.78, 65,939.70 and 17,662.54 is: 26,495.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,957.78 : 65,939.70 = 17,662.54 : x
  2. Step 2: Convert to fraction form
    43,957.78/65,939.70 = 17,662.54/x
  3. Step 3: Cross multiply
    43,957.78x = 65,939.70 × 17,662.54
  4. Step 4: Simplify right side
    43,957.78x = 1,164,662,588.84
  5. Step 5: Solve for x
    x = 1,164,662,588.84/43,957.78
  6. Step 6: Final answer
    x = 26,495.03

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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.