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Finding the Fourth Proportional to 29,697.21, 40,981.08 and 16,951.05

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Solution

The fourth proportional to 29,697.21, 40,981.08 and 16,951.05 is: 23,391.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,697.21 : 40,981.08 = 16,951.05 : x
  2. Step 2: Convert to fraction form
    29,697.21/40,981.08 = 16,951.05/x
  3. Step 3: Cross multiply
    29,697.21x = 40,981.08 × 16,951.05
  4. Step 4: Simplify right side
    29,697.21x = 694,672,336.13
  5. Step 5: Solve for x
    x = 694,672,336.13/29,697.21
  6. Step 6: Final answer
    x = 23,391.84

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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.