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Finding the Fourth Proportional to 53,599.76, 80,436.48 and 18,539.44

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Solution

The fourth proportional to 53,599.76, 80,436.48 and 18,539.44 is: 27,821.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,599.76 : 80,436.48 = 18,539.44 : x
  2. Step 2: Convert to fraction form
    53,599.76/80,436.48 = 18,539.44/x
  3. Step 3: Cross multiply
    53,599.76x = 80,436.48 × 18,539.44
  4. Step 4: Simplify right side
    53,599.76x = 1,491,247,294.77
  5. Step 5: Solve for x
    x = 1,491,247,294.77/53,599.76
  6. Step 6: Final answer
    x = 27,821.90

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1.5x scale

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.