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Finding the Fourth Proportional to 28,903.13, 43,354.69 and 8,126.63

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Solution

The fourth proportional to 28,903.13, 43,354.69 and 8,126.63 is: 12,189.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,903.13 : 43,354.69 = 8,126.63 : x
  2. Step 2: Convert to fraction form
    28,903.13/43,354.69 = 8,126.63/x
  3. Step 3: Cross multiply
    28,903.13x = 43,354.69 × 8,126.63
  4. Step 4: Simplify right side
    28,903.13x = 352,327,524.39
  5. Step 5: Solve for x
    x = 352,327,524.39/28,903.13
  6. Step 6: Final answer
    x = 12,189.94

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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.