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Finding the Fourth Proportional to 28,893.44, 43,332.60 and 8,112.08

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Solution

The fourth proportional to 28,893.44, 43,332.60 and 8,112.08 is: 12,166.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,893.44 : 43,332.60 = 8,112.08 : x
  2. Step 2: Convert to fraction form
    28,893.44/43,332.60 = 8,112.08/x
  3. Step 3: Cross multiply
    28,893.44x = 43,332.60 × 8,112.08
  4. Step 4: Simplify right side
    28,893.44x = 351,517,517.81
  5. Step 5: Solve for x
    x = 351,517,517.81/28,893.44
  6. Step 6: Final answer
    x = 12,166.00

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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.