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Finding the Fourth Proportional to 8,443.44, 12,664.08 and 3,512.16

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Solution

The fourth proportional to 8,443.44, 12,664.08 and 3,512.16 is: 5,267.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,443.44 : 12,664.08 = 3,512.16 : x
  2. Step 2: Convert to fraction form
    8,443.44/12,664.08 = 3,512.16/x
  3. Step 3: Cross multiply
    8,443.44x = 12,664.08 × 3,512.16
  4. Step 4: Simplify right side
    8,443.44x = 44,478,275.21
  5. Step 5: Solve for x
    x = 44,478,275.21/8,443.44
  6. Step 6: Final answer
    x = 5,267.79

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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.