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Finding the Fourth Proportional to 29,431.86, 40,606.04 and 16,683.68

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Solution

The fourth proportional to 29,431.86, 40,606.04 and 16,683.68 is: 23,017.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,431.86 : 40,606.04 = 16,683.68 : x
  2. Step 2: Convert to fraction form
    29,431.86/40,606.04 = 16,683.68/x
  3. Step 3: Cross multiply
    29,431.86x = 40,606.04 × 16,683.68
  4. Step 4: Simplify right side
    29,431.86x = 677,458,177.43
  5. Step 5: Solve for x
    x = 677,458,177.43/29,431.86
  6. Step 6: Final answer
    x = 23,017.85

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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.