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Finding the Fourth Proportional to 8,479.44, 11,700.36 and 4,752.72

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Solution

The fourth proportional to 8,479.44, 11,700.36 and 4,752.72 is: 6,558.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,479.44 : 11,700.36 = 4,752.72 : x
  2. Step 2: Convert to fraction form
    8,479.44/11,700.36 = 4,752.72/x
  3. Step 3: Cross multiply
    8,479.44x = 11,700.36 × 4,752.72
  4. Step 4: Simplify right side
    8,479.44x = 55,608,534.98
  5. Step 5: Solve for x
    x = 55,608,534.98/8,479.44
  6. Step 6: Final answer
    x = 6,558.04

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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.