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Finding the Fourth Proportional to 17,660.60, 26,490.90 and 16,105.40

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Solution

The fourth proportional to 17,660.60, 26,490.90 and 16,105.40 is: 24,158.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,660.60 : 26,490.90 = 16,105.40 : x
  2. Step 2: Convert to fraction form
    17,660.60/26,490.90 = 16,105.40/x
  3. Step 3: Cross multiply
    17,660.60x = 26,490.90 × 16,105.40
  4. Step 4: Simplify right side
    17,660.60x = 426,646,540.86
  5. Step 5: Solve for x
    x = 426,646,540.86/17,660.60
  6. Step 6: Final answer
    x = 24,158.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.