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Finding the Fourth Proportional to 52,887.34, 79,354.70 and 28,879.54

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Solution

The fourth proportional to 52,887.34, 79,354.70 and 28,879.54 is: 43,332.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,887.34 : 79,354.70 = 28,879.54 : x
  2. Step 2: Convert to fraction form
    52,887.34/79,354.70 = 28,879.54/x
  3. Step 3: Cross multiply
    52,887.34x = 79,354.70 × 28,879.54
  4. Step 4: Simplify right side
    52,887.34x = 2,291,726,691.67
  5. Step 5: Solve for x
    x = 2,291,726,691.67/52,887.34
  6. Step 6: Final answer
    x = 43,332.24

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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.