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Finding the Fourth Proportional to 61,294.37, 91,941.68 and 19,174.73

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Solution

The fourth proportional to 61,294.37, 91,941.68 and 19,174.73 is: 28,762.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,294.37 : 91,941.68 = 19,174.73 : x
  2. Step 2: Convert to fraction form
    61,294.37/91,941.68 = 19,174.73/x
  3. Step 3: Cross multiply
    61,294.37x = 91,941.68 × 19,174.73
  4. Step 4: Simplify right side
    61,294.37x = 1,762,956,477.97
  5. Step 5: Solve for x
    x = 1,762,956,477.97/61,294.37
  6. Step 6: Final answer
    x = 28,762.13

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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.