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Finding the Fourth Proportional to 29,464.68, 40,659.12 and 16,887

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Solution

The fourth proportional to 29,464.68, 40,659.12 and 16,887 is: 23,302.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,464.68 : 40,659.12 = 16,887 : x
  2. Step 2: Convert to fraction form
    29,464.68/40,659.12 = 16,887/x
  3. Step 3: Cross multiply
    29,464.68x = 40,659.12 × 16,887
  4. Step 4: Simplify right side
    29,464.68x = 686,610,559.44
  5. Step 5: Solve for x
    x = 686,610,559.44/29,464.68
  6. Step 6: Final answer
    x = 23,302.83

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Why These Related Problems?

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