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Finding the Fourth Proportional to 8,463.63, 11,682.34 and 5,479.67

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Solution

The fourth proportional to 8,463.63, 11,682.34 and 5,479.67 is: 7,563.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,463.63 : 11,682.34 = 5,479.67 : x
  2. Step 2: Convert to fraction form
    8,463.63/11,682.34 = 5,479.67/x
  3. Step 3: Cross multiply
    8,463.63x = 11,682.34 × 5,479.67
  4. Step 4: Simplify right side
    8,463.63x = 64,015,368.03
  5. Step 5: Solve for x
    x = 64,015,368.03/8,463.63
  6. Step 6: Final answer
    x = 7,563.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.