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Finding the Fourth Proportional to 20,454.48, 30,674.16 and 16,080.48

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Solution

The fourth proportional to 20,454.48, 30,674.16 and 16,080.48 is: 24,114.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,454.48 : 30,674.16 = 16,080.48 : x
  2. Step 2: Convert to fraction form
    20,454.48/30,674.16 = 16,080.48/x
  3. Step 3: Cross multiply
    20,454.48x = 30,674.16 × 16,080.48
  4. Step 4: Simplify right side
    20,454.48x = 493,255,216.40
  5. Step 5: Solve for x
    x = 493,255,216.40/20,454.48
  6. Step 6: Final answer
    x = 24,114.78

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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.