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Finding the Fourth Proportional to 17,992.53, 26,988.80 and 6,305.78

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Solution

The fourth proportional to 17,992.53, 26,988.80 and 6,305.78 is: 9,458.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,992.53 : 26,988.80 = 6,305.78 : x
  2. Step 2: Convert to fraction form
    17,992.53/26,988.80 = 6,305.78/x
  3. Step 3: Cross multiply
    17,992.53x = 26,988.80 × 6,305.78
  4. Step 4: Simplify right side
    17,992.53x = 170,185,471.21
  5. Step 5: Solve for x
    x = 170,185,471.21/17,992.53
  6. Step 6: Final answer
    x = 9,458.67

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Similar ratio
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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.