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Finding the Fourth Proportional to 61,478.88, 92,218.43 and 17,105.67

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Solution

The fourth proportional to 61,478.88, 92,218.43 and 17,105.67 is: 25,658.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,478.88 : 92,218.43 = 17,105.67 : x
  2. Step 2: Convert to fraction form
    61,478.88/92,218.43 = 17,105.67/x
  3. Step 3: Cross multiply
    61,478.88x = 92,218.43 × 17,105.67
  4. Step 4: Simplify right side
    61,478.88x = 1,577,457,945.97
  5. Step 5: Solve for x
    x = 1,577,457,945.97/61,478.88
  6. Step 6: Final answer
    x = 25,658.53

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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.