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Finding the Fourth Proportional to 54,566.61, 81,893.66 and 28,278.87

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Solution

The fourth proportional to 54,566.61, 81,893.66 and 28,278.87 is: 42,440.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,566.61 : 81,893.66 = 28,278.87 : x
  2. Step 2: Convert to fraction form
    54,566.61/81,893.66 = 28,278.87/x
  3. Step 3: Cross multiply
    54,566.61x = 81,893.66 × 28,278.87
  4. Step 4: Simplify right side
    54,566.61x = 2,315,860,023.57
  5. Step 5: Solve for x
    x = 2,315,860,023.57/54,566.61
  6. Step 6: Final answer
    x = 42,440.97

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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.