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Finding the Fourth Proportional to 8,612.16, 12,923.17 and 3,346.49

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Solution

The fourth proportional to 8,612.16, 12,923.17 and 3,346.49 is: 5,021.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,612.16 : 12,923.17 = 3,346.49 : x
  2. Step 2: Convert to fraction form
    8,612.16/12,923.17 = 3,346.49/x
  3. Step 3: Cross multiply
    8,612.16x = 12,923.17 × 3,346.49
  4. Step 4: Simplify right side
    8,612.16x = 43,247,256.18
  5. Step 5: Solve for x
    x = 43,247,256.18/8,612.16
  6. Step 6: Final answer
    x = 5,021.65

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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.