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Finding the Fourth Proportional to 61,858.52, 92,786.96 and 15,111.80

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Solution

The fourth proportional to 61,858.52, 92,786.96 and 15,111.80 is: 22,667.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,858.52 : 92,786.96 = 15,111.80 : x
  2. Step 2: Convert to fraction form
    61,858.52/92,786.96 = 15,111.80/x
  3. Step 3: Cross multiply
    61,858.52x = 92,786.96 × 15,111.80
  4. Step 4: Simplify right side
    61,858.52x = 1,402,177,442.63
  5. Step 5: Solve for x
    x = 1,402,177,442.63/61,858.52
  6. Step 6: Final answer
    x = 22,667.49

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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.