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Finding the Fourth Proportional to 53,990.34, 80,990.91 and 16,549.98

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Solution

The fourth proportional to 53,990.34, 80,990.91 and 16,549.98 is: 24,826.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,990.34 : 80,990.91 = 16,549.98 : x
  2. Step 2: Convert to fraction form
    53,990.34/80,990.91 = 16,549.98/x
  3. Step 3: Cross multiply
    53,990.34x = 80,990.91 × 16,549.98
  4. Step 4: Simplify right side
    53,990.34x = 1,340,397,940.68
  5. Step 5: Solve for x
    x = 1,340,397,940.68/53,990.34
  6. Step 6: Final answer
    x = 24,826.63

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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.