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Finding the Fourth Proportional to 61,369.86, 92,054.88 and 18,675.66

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Solution

The fourth proportional to 61,369.86, 92,054.88 and 18,675.66 is: 28,013.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,369.86 : 92,054.88 = 18,675.66 : x
  2. Step 2: Convert to fraction form
    61,369.86/92,054.88 = 18,675.66/x
  3. Step 3: Cross multiply
    61,369.86x = 92,054.88 × 18,675.66
  4. Step 4: Simplify right side
    61,369.86x = 1,719,185,640.22
  5. Step 5: Solve for x
    x = 1,719,185,640.22/61,369.86
  6. Step 6: Final answer
    x = 28,013.52

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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.