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Finding the Fourth Proportional to 28,714.96, 43,092.12 and 11,184.88

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Solution

The fourth proportional to 28,714.96, 43,092.12 and 11,184.88 is: 16,784.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,714.96 : 43,092.12 = 11,184.88 : x
  2. Step 2: Convert to fraction form
    28,714.96/43,092.12 = 11,184.88/x
  3. Step 3: Cross multiply
    28,714.96x = 43,092.12 × 11,184.88
  4. Step 4: Simplify right side
    28,714.96x = 481,980,191.15
  5. Step 5: Solve for x
    x = 481,980,191.15/28,714.96
  6. Step 6: Final answer
    x = 16,784.99

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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.