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Finding the Fourth Proportional to 17,676.64, 24,393.84 and 9,719.38

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Solution

The fourth proportional to 17,676.64, 24,393.84 and 9,719.38 is: 13,412.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,676.64 : 24,393.84 = 9,719.38 : x
  2. Step 2: Convert to fraction form
    17,676.64/24,393.84 = 9,719.38/x
  3. Step 3: Cross multiply
    17,676.64x = 24,393.84 × 9,719.38
  4. Step 4: Simplify right side
    17,676.64x = 237,093,000.62
  5. Step 5: Solve for x
    x = 237,093,000.62/17,676.64
  6. Step 6: Final answer
    x = 13,412.79

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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.