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Finding the Fourth Proportional to 54,328.60, 81,492.90 and 27,756.55

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Solution

The fourth proportional to 54,328.60, 81,492.90 and 27,756.55 is: 41,634.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,328.60 : 81,492.90 = 27,756.55 : x
  2. Step 2: Convert to fraction form
    54,328.60/81,492.90 = 27,756.55/x
  3. Step 3: Cross multiply
    54,328.60x = 81,492.90 × 27,756.55
  4. Step 4: Simplify right side
    54,328.60x = 2,261,961,753.50
  5. Step 5: Solve for x
    x = 2,261,961,753.50/54,328.60
  6. Step 6: Final answer
    x = 41,634.83

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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.