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Finding the Fourth Proportional to 12,408.59, 18,612.93 and 3,048.68

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Solution

The fourth proportional to 12,408.59, 18,612.93 and 3,048.68 is: 4,573.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,408.59 : 18,612.93 = 3,048.68 : x
  2. Step 2: Convert to fraction form
    12,408.59/18,612.93 = 3,048.68/x
  3. Step 3: Cross multiply
    12,408.59x = 18,612.93 × 3,048.68
  4. Step 4: Simplify right side
    12,408.59x = 56,744,867.43
  5. Step 5: Solve for x
    x = 56,744,867.43/12,408.59
  6. Step 6: Final answer
    x = 4,573.03

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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.