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Finding the Fourth Proportional to 17,693.92, 26,515.92 and 13,780.96

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Solution

The fourth proportional to 17,693.92, 26,515.92 and 13,780.96 is: 20,652.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,693.92 : 26,515.92 = 13,780.96 : x
  2. Step 2: Convert to fraction form
    17,693.92/26,515.92 = 13,780.96/x
  3. Step 3: Cross multiply
    17,693.92x = 26,515.92 × 13,780.96
  4. Step 4: Simplify right side
    17,693.92x = 365,414,832.88
  5. Step 5: Solve for x
    x = 365,414,832.88/17,693.92
  6. Step 6: Final answer
    x = 20,652.00

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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.