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Finding the Fourth Proportional to 28,784.54, 43,173.02 and 9,063.20

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Solution

The fourth proportional to 28,784.54, 43,173.02 and 9,063.20 is: 13,593.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,784.54 : 43,173.02 = 9,063.20 : x
  2. Step 2: Convert to fraction form
    28,784.54/43,173.02 = 9,063.20/x
  3. Step 3: Cross multiply
    28,784.54x = 43,173.02 × 9,063.20
  4. Step 4: Simplify right side
    28,784.54x = 391,285,714.86
  5. Step 5: Solve for x
    x = 391,285,714.86/28,784.54
  6. Step 6: Final answer
    x = 13,593.61

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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.