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Finding the Fourth Proportional to 61,391.86, 92,089.52 and 17,021.89

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Solution

The fourth proportional to 61,391.86, 92,089.52 and 17,021.89 is: 25,533.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,391.86 : 92,089.52 = 17,021.89 : x
  2. Step 2: Convert to fraction form
    61,391.86/92,089.52 = 17,021.89/x
  3. Step 3: Cross multiply
    61,391.86x = 92,089.52 × 17,021.89
  4. Step 4: Simplify right side
    61,391.86x = 1,567,537,679.59
  5. Step 5: Solve for x
    x = 1,567,537,679.59/61,391.86
  6. Step 6: Final answer
    x = 25,533.31

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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.