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Finding the Fourth Proportional to 11,482.12, 17,223.18 and 4,555

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Solution

The fourth proportional to 11,482.12, 17,223.18 and 4,555 is: 6,832.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,482.12 : 17,223.18 = 4,555 : x
  2. Step 2: Convert to fraction form
    11,482.12/17,223.18 = 4,555/x
  3. Step 3: Cross multiply
    11,482.12x = 17,223.18 × 4,555
  4. Step 4: Simplify right side
    11,482.12x = 78,451,584.90
  5. Step 5: Solve for x
    x = 78,451,584.90/11,482.12
  6. Step 6: Final answer
    x = 6,832.50

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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.