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Finding the Fourth Proportional to 18,561.82, 27,835.80 and 7,464.76

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Solution

The fourth proportional to 18,561.82, 27,835.80 and 7,464.76 is: 11,194.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,561.82 : 27,835.80 = 7,464.76 : x
  2. Step 2: Convert to fraction form
    18,561.82/27,835.80 = 7,464.76/x
  3. Step 3: Cross multiply
    18,561.82x = 27,835.80 × 7,464.76
  4. Step 4: Simplify right side
    18,561.82x = 207,787,566.41
  5. Step 5: Solve for x
    x = 207,787,566.41/18,561.82
  6. Step 6: Final answer
    x = 11,194.35

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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.