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Finding the Fourth Proportional to 29,457.18, 40,646.34 and 16,879.50

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Solution

The fourth proportional to 29,457.18, 40,646.34 and 16,879.50 is: 23,291.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,457.18 : 40,646.34 = 16,879.50 : x
  2. Step 2: Convert to fraction form
    29,457.18/40,646.34 = 16,879.50/x
  3. Step 3: Cross multiply
    29,457.18x = 40,646.34 × 16,879.50
  4. Step 4: Simplify right side
    29,457.18x = 686,089,896.03
  5. Step 5: Solve for x
    x = 686,089,896.03/29,457.18
  6. Step 6: Final answer
    x = 23,291.09

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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.