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Finding the Fourth Proportional to 17,555.40, 26,333.10 and 4,408.20

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Solution

The fourth proportional to 17,555.40, 26,333.10 and 4,408.20 is: 6,612.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,555.40 : 26,333.10 = 4,408.20 : x
  2. Step 2: Convert to fraction form
    17,555.40/26,333.10 = 4,408.20/x
  3. Step 3: Cross multiply
    17,555.40x = 26,333.10 × 4,408.20
  4. Step 4: Simplify right side
    17,555.40x = 116,081,571.42
  5. Step 5: Solve for x
    x = 116,081,571.42/17,555.40
  6. Step 6: Final answer
    x = 6,612.30

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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.