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Finding the Fourth Proportional to 17,676.40, 26,471.40 and 16,898.80

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Solution

The fourth proportional to 17,676.40, 26,471.40 and 16,898.80 is: 25,306.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,676.40 : 26,471.40 = 16,898.80 : x
  2. Step 2: Convert to fraction form
    17,676.40/26,471.40 = 16,898.80/x
  3. Step 3: Cross multiply
    17,676.40x = 26,471.40 × 16,898.80
  4. Step 4: Simplify right side
    17,676.40x = 447,334,894.32
  5. Step 5: Solve for x
    x = 447,334,894.32/17,676.40
  6. Step 6: Final answer
    x = 25,306.90

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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.