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Finding the Fourth Proportional to 28,284.40, 42,340.20 and 22,063.60

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Solution

The fourth proportional to 28,284.40, 42,340.20 and 22,063.60 is: 33,028.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,284.40 : 42,340.20 = 22,063.60 : x
  2. Step 2: Convert to fraction form
    28,284.40/42,340.20 = 22,063.60/x
  3. Step 3: Cross multiply
    28,284.40x = 42,340.20 × 22,063.60
  4. Step 4: Simplify right side
    28,284.40x = 934,177,236.72
  5. Step 5: Solve for x
    x = 934,177,236.72/28,284.40
  6. Step 6: Final answer
    x = 33,028.00

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.