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Finding the Fourth Proportional to 61,905.72, 92,854.33 and 28,652.39

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Solution

The fourth proportional to 61,905.72, 92,854.33 and 28,652.39 is: 42,976.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,905.72 : 92,854.33 = 28,652.39 : x
  2. Step 2: Convert to fraction form
    61,905.72/92,854.33 = 28,652.39/x
  3. Step 3: Cross multiply
    61,905.72x = 92,854.33 × 28,652.39
  4. Step 4: Simplify right side
    61,905.72x = 2,660,497,940.45
  5. Step 5: Solve for x
    x = 2,660,497,940.45/61,905.72
  6. Step 6: Final answer
    x = 42,976.61

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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.