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Finding the Fourth Proportional to 18,958.96, 26,174.46 and 12,594.16

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Solution

The fourth proportional to 18,958.96, 26,174.46 and 12,594.16 is: 17,387.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,958.96 : 26,174.46 = 12,594.16 : x
  2. Step 2: Convert to fraction form
    18,958.96/26,174.46 = 12,594.16/x
  3. Step 3: Cross multiply
    18,958.96x = 26,174.46 × 12,594.16
  4. Step 4: Simplify right side
    18,958.96x = 329,645,337.15
  5. Step 5: Solve for x
    x = 329,645,337.15/18,958.96
  6. Step 6: Final answer
    x = 17,387.31

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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.