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Finding the Fourth Proportional to 28,893.68, 43,327.56 and 9,168.56

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Solution

The fourth proportional to 28,893.68, 43,327.56 and 9,168.56 is: 13,748.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,893.68 : 43,327.56 = 9,168.56 : x
  2. Step 2: Convert to fraction form
    28,893.68/43,327.56 = 9,168.56/x
  3. Step 3: Cross multiply
    28,893.68x = 43,327.56 × 9,168.56
  4. Step 4: Simplify right side
    28,893.68x = 397,251,333.51
  5. Step 5: Solve for x
    x = 397,251,333.51/28,893.68
  6. Step 6: Final answer
    x = 13,748.73

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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.