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Finding the Fourth Proportional to 29,988.56, 41,376.84 and 18,652.88

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Solution

The fourth proportional to 29,988.56, 41,376.84 and 18,652.88 is: 25,736.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,988.56 : 41,376.84 = 18,652.88 : x
  2. Step 2: Convert to fraction form
    29,988.56/41,376.84 = 18,652.88/x
  3. Step 3: Cross multiply
    29,988.56x = 41,376.84 × 18,652.88
  4. Step 4: Simplify right side
    29,988.56x = 771,797,231.30
  5. Step 5: Solve for x
    x = 771,797,231.30/29,988.56
  6. Step 6: Final answer
    x = 25,736.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.