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Finding the Fourth Proportional to 61,207.70, 91,804.26 and 16,838.96

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Solution

The fourth proportional to 61,207.70, 91,804.26 and 16,838.96 is: 25,256.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,207.70 : 91,804.26 = 16,838.96 : x
  2. Step 2: Convert to fraction form
    61,207.70/91,804.26 = 16,838.96/x
  3. Step 3: Cross multiply
    61,207.70x = 91,804.26 × 16,838.96
  4. Step 4: Simplify right side
    61,207.70x = 1,545,888,261.97
  5. Step 5: Solve for x
    x = 1,545,888,261.97/61,207.70
  6. Step 6: Final answer
    x = 25,256.43

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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.