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Finding the Fourth Proportional to 17,894.75, 26,842.68 and 8,535.78

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Solution

The fourth proportional to 17,894.75, 26,842.68 and 8,535.78 is: 12,803.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,894.75 : 26,842.68 = 8,535.78 : x
  2. Step 2: Convert to fraction form
    17,894.75/26,842.68 = 8,535.78/x
  3. Step 3: Cross multiply
    17,894.75x = 26,842.68 × 8,535.78
  4. Step 4: Simplify right side
    17,894.75x = 229,123,211.09
  5. Step 5: Solve for x
    x = 229,123,211.09/17,894.75
  6. Step 6: Final answer
    x = 12,803.94

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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.