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Finding the Fourth Proportional to 11,888.40, 17,832.69 and 3,568.48

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Solution

The fourth proportional to 11,888.40, 17,832.69 and 3,568.48 is: 5,352.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,888.40 : 17,832.69 = 3,568.48 : x
  2. Step 2: Convert to fraction form
    11,888.40/17,832.69 = 3,568.48/x
  3. Step 3: Cross multiply
    11,888.40x = 17,832.69 × 3,568.48
  4. Step 4: Simplify right side
    11,888.40x = 63,635,597.61
  5. Step 5: Solve for x
    x = 63,635,597.61/11,888.40
  6. Step 6: Final answer
    x = 5,352.75

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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.