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Finding the Fourth Proportional to 4,679.76, 7,012.44 and 2,372.88

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Solution

The fourth proportional to 4,679.76, 7,012.44 and 2,372.88 is: 3,555.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,679.76 : 7,012.44 = 2,372.88 : x
  2. Step 2: Convert to fraction form
    4,679.76/7,012.44 = 2,372.88/x
  3. Step 3: Cross multiply
    4,679.76x = 7,012.44 × 2,372.88
  4. Step 4: Simplify right side
    4,679.76x = 16,639,678.63
  5. Step 5: Solve for x
    x = 16,639,678.63/4,679.76
  6. Step 6: Final answer
    x = 3,555.67

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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.