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Finding the Fourth Proportional to 17,842.89, 26,727.99 and 8,454.45

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Solution

The fourth proportional to 17,842.89, 26,727.99 and 8,454.45 is: 12,664.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,842.89 : 26,727.99 = 8,454.45 : x
  2. Step 2: Convert to fraction form
    17,842.89/26,727.99 = 8,454.45/x
  3. Step 3: Cross multiply
    17,842.89x = 26,727.99 × 8,454.45
  4. Step 4: Simplify right side
    17,842.89x = 225,970,455.06
  5. Step 5: Solve for x
    x = 225,970,455.06/17,842.89
  6. Step 6: Final answer
    x = 12,664.45

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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.