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Finding the Fourth Proportional to 29,703.15, 40,990.41 and 16,274.12

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Solution

The fourth proportional to 29,703.15, 40,990.41 and 16,274.12 is: 22,458.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,703.15 : 40,990.41 = 16,274.12 : x
  2. Step 2: Convert to fraction form
    29,703.15/40,990.41 = 16,274.12/x
  3. Step 3: Cross multiply
    29,703.15x = 40,990.41 × 16,274.12
  4. Step 4: Simplify right side
    29,703.15x = 667,082,646.24
  5. Step 5: Solve for x
    x = 667,082,646.24/29,703.15
  6. Step 6: Final answer
    x = 22,458.31

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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.