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Finding the Fourth Proportional to 28,593.10, 42,893.79 and 8,873.25

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Solution

The fourth proportional to 28,593.10, 42,893.79 and 8,873.25 is: 13,311.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,593.10 : 42,893.79 = 8,873.25 : x
  2. Step 2: Convert to fraction form
    28,593.10/42,893.79 = 8,873.25/x
  3. Step 3: Cross multiply
    28,593.10x = 42,893.79 × 8,873.25
  4. Step 4: Simplify right side
    28,593.10x = 380,607,322.12
  5. Step 5: Solve for x
    x = 380,607,322.12/28,593.10
  6. Step 6: Final answer
    x = 13,311.16

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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.