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Finding the Fourth Proportional to 12,132.65, 18,199.65 and 4,736.48

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Solution

The fourth proportional to 12,132.65, 18,199.65 and 4,736.48 is: 7,104.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,132.65 : 18,199.65 = 4,736.48 : x
  2. Step 2: Convert to fraction form
    12,132.65/18,199.65 = 4,736.48/x
  3. Step 3: Cross multiply
    12,132.65x = 18,199.65 × 4,736.48
  4. Step 4: Simplify right side
    12,132.65x = 86,202,205.00
  5. Step 5: Solve for x
    x = 86,202,205.00/12,132.65
  6. Step 6: Final answer
    x = 7,104.98

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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.