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Finding the Fourth Proportional to 61,374.86, 92,062.38 and 18,680.66

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Solution

The fourth proportional to 61,374.86, 92,062.38 and 18,680.66 is: 28,021.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,374.86 : 92,062.38 = 18,680.66 : x
  2. Step 2: Convert to fraction form
    61,374.86/92,062.38 = 18,680.66/x
  3. Step 3: Cross multiply
    61,374.86x = 92,062.38 × 18,680.66
  4. Step 4: Simplify right side
    61,374.86x = 1,719,786,019.57
  5. Step 5: Solve for x
    x = 1,719,786,019.57/61,374.86
  6. Step 6: Final answer
    x = 28,021.02

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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.