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Finding the Fourth Proportional to 17,750.25, 26,631.63 and 7,888.62

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Solution

The fourth proportional to 17,750.25, 26,631.63 and 7,888.62 is: 11,835.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,750.25 : 26,631.63 = 7,888.62 : x
  2. Step 2: Convert to fraction form
    17,750.25/26,631.63 = 7,888.62/x
  3. Step 3: Cross multiply
    17,750.25x = 26,631.63 × 7,888.62
  4. Step 4: Simplify right side
    17,750.25x = 210,086,809.05
  5. Step 5: Solve for x
    x = 210,086,809.05/17,750.25
  6. Step 6: Final answer
    x = 11,835.71

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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.