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Finding the Fourth Proportional to 28,967.40, 43,418.70 and 12,324.60

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Solution

The fourth proportional to 28,967.40, 43,418.70 and 12,324.60 is: 18,473.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,967.40 : 43,418.70 = 12,324.60 : x
  2. Step 2: Convert to fraction form
    28,967.40/43,418.70 = 12,324.60/x
  3. Step 3: Cross multiply
    28,967.40x = 43,418.70 × 12,324.60
  4. Step 4: Simplify right side
    28,967.40x = 535,118,110.02
  5. Step 5: Solve for x
    x = 535,118,110.02/28,967.40
  6. Step 6: Final answer
    x = 18,473.11

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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.