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Finding the Fourth Proportional to 11,375.76, 17,074.68 and 7,001.76

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Solution

The fourth proportional to 11,375.76, 17,074.68 and 7,001.76 is: 10,509.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,375.76 : 17,074.68 = 7,001.76 : x
  2. Step 2: Convert to fraction form
    11,375.76/17,074.68 = 7,001.76/x
  3. Step 3: Cross multiply
    11,375.76x = 17,074.68 × 7,001.76
  4. Step 4: Simplify right side
    11,375.76x = 119,552,811.44
  5. Step 5: Solve for x
    x = 119,552,811.44/11,375.76
  6. Step 6: Final answer
    x = 10,509.44

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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.