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Finding the Fourth Proportional to 29,287.12, 40,419.12 and 16,713.76

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Solution

The fourth proportional to 29,287.12, 40,419.12 and 16,713.76 is: 23,066.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,287.12 : 40,419.12 = 16,713.76 : x
  2. Step 2: Convert to fraction form
    29,287.12/40,419.12 = 16,713.76/x
  3. Step 3: Cross multiply
    29,287.12x = 40,419.12 × 16,713.76
  4. Step 4: Simplify right side
    29,287.12x = 675,555,471.09
  5. Step 5: Solve for x
    x = 675,555,471.09/29,287.12
  6. Step 6: Final answer
    x = 23,066.64

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.