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Finding the Fourth Proportional to 18,408.12, 27,597.06 and 6,713.88

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Solution

The fourth proportional to 18,408.12, 27,597.06 and 6,713.88 is: 10,065.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,408.12 : 27,597.06 = 6,713.88 : x
  2. Step 2: Convert to fraction form
    18,408.12/27,597.06 = 6,713.88/x
  3. Step 3: Cross multiply
    18,408.12x = 27,597.06 × 6,713.88
  4. Step 4: Simplify right side
    18,408.12x = 185,283,349.19
  5. Step 5: Solve for x
    x = 185,283,349.19/18,408.12
  6. Step 6: Final answer
    x = 10,065.31

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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.