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Finding the Fourth Proportional to 17,922.96, 26,878.05 and 7,392.54

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Solution

The fourth proportional to 17,922.96, 26,878.05 and 7,392.54 is: 11,086.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,922.96 : 26,878.05 = 7,392.54 : x
  2. Step 2: Convert to fraction form
    17,922.96/26,878.05 = 7,392.54/x
  3. Step 3: Cross multiply
    17,922.96x = 26,878.05 × 7,392.54
  4. Step 4: Simplify right side
    17,922.96x = 198,697,059.75
  5. Step 5: Solve for x
    x = 198,697,059.75/17,922.96
  6. Step 6: Final answer
    x = 11,086.17

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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.