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Finding the Fourth Proportional to 29,603.40, 40,863.87 and 17,662.38

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Solution

The fourth proportional to 29,603.40, 40,863.87 and 17,662.38 is: 24,380.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,603.40 : 40,863.87 = 17,662.38 : x
  2. Step 2: Convert to fraction form
    29,603.40/40,863.87 = 17,662.38/x
  3. Step 3: Cross multiply
    29,603.40x = 40,863.87 × 17,662.38
  4. Step 4: Simplify right side
    29,603.40x = 721,753,200.21
  5. Step 5: Solve for x
    x = 721,753,200.21/29,603.40
  6. Step 6: Final answer
    x = 24,380.75

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1.5x scale

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.