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Finding the Fourth Proportional to 11,903.85, 17,855.95 and 4,506.32

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Solution

The fourth proportional to 11,903.85, 17,855.95 and 4,506.32 is: 6,759.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,903.85 : 17,855.95 = 4,506.32 : x
  2. Step 2: Convert to fraction form
    11,903.85/17,855.95 = 4,506.32/x
  3. Step 3: Cross multiply
    11,903.85x = 17,855.95 × 4,506.32
  4. Step 4: Simplify right side
    11,903.85x = 80,464,674.88
  5. Step 5: Solve for x
    x = 80,464,674.88/11,903.85
  6. Step 6: Final answer
    x = 6,759.55

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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.