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Finding the Fourth Proportional to 29,651.60, 40,919.98 and 16,223.42

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Solution

The fourth proportional to 29,651.60, 40,919.98 and 16,223.42 is: 22,388.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,651.60 : 40,919.98 = 16,223.42 : x
  2. Step 2: Convert to fraction form
    29,651.60/40,919.98 = 16,223.42/x
  3. Step 3: Cross multiply
    29,651.60x = 40,919.98 × 16,223.42
  4. Step 4: Simplify right side
    29,651.60x = 663,862,021.93
  5. Step 5: Solve for x
    x = 663,862,021.93/29,651.60
  6. Step 6: Final answer
    x = 22,388.74

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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.