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Finding the Fourth Proportional to 17,447.96, 26,171.90 and 5,135.96

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Solution

The fourth proportional to 17,447.96, 26,171.90 and 5,135.96 is: 7,703.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,447.96 : 26,171.90 = 5,135.96 : x
  2. Step 2: Convert to fraction form
    17,447.96/26,171.90 = 5,135.96/x
  3. Step 3: Cross multiply
    17,447.96x = 26,171.90 × 5,135.96
  4. Step 4: Simplify right side
    17,447.96x = 134,417,674.98
  5. Step 5: Solve for x
    x = 134,417,674.98/17,447.96
  6. Step 6: Final answer
    x = 7,703.92

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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.