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Finding the Fourth Proportional to 45,652.35, 62,978.43 and 28,648.14

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Solution

The fourth proportional to 45,652.35, 62,978.43 and 28,648.14 is: 39,520.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,652.35 : 62,978.43 = 28,648.14 : x
  2. Step 2: Convert to fraction form
    45,652.35/62,978.43 = 28,648.14/x
  3. Step 3: Cross multiply
    45,652.35x = 62,978.43 × 28,648.14
  4. Step 4: Simplify right side
    45,652.35x = 1,804,214,879.62
  5. Step 5: Solve for x
    x = 1,804,214,879.62/45,652.35
  6. Step 6: Final answer
    x = 39,520.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.