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Finding the Fourth Proportional to 52,750.86, 72,796.41 and 28,879.77

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Solution

The fourth proportional to 52,750.86, 72,796.41 and 28,879.77 is: 39,854.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,750.86 : 72,796.41 = 28,879.77 : x
  2. Step 2: Convert to fraction form
    52,750.86/72,796.41 = 28,879.77/x
  3. Step 3: Cross multiply
    52,750.86x = 72,796.41 × 28,879.77
  4. Step 4: Simplify right side
    52,750.86x = 2,102,343,577.63
  5. Step 5: Solve for x
    x = 2,102,343,577.63/52,750.86
  6. Step 6: Final answer
    x = 39,854.20

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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.