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Finding the Fourth Proportional to 29,651.82, 40,919.15 and 16,222.91

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Solution

The fourth proportional to 29,651.82, 40,919.15 and 16,222.91 is: 22,387.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,651.82 : 40,919.15 = 16,222.91 : x
  2. Step 2: Convert to fraction form
    29,651.82/40,919.15 = 16,222.91/x
  3. Step 3: Cross multiply
    29,651.82x = 40,919.15 × 16,222.91
  4. Step 4: Simplify right side
    29,651.82x = 663,827,402.02
  5. Step 5: Solve for x
    x = 663,827,402.02/29,651.82
  6. Step 6: Final answer
    x = 22,387.41

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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.