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Finding the Fourth Proportional to 18,597.76, 27,896.65 and 11,677.12

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Solution

The fourth proportional to 18,597.76, 27,896.65 and 11,677.12 is: 17,515.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,597.76 : 27,896.65 = 11,677.12 : x
  2. Step 2: Convert to fraction form
    18,597.76/27,896.65 = 11,677.12/x
  3. Step 3: Cross multiply
    18,597.76x = 27,896.65 × 11,677.12
  4. Step 4: Simplify right side
    18,597.76x = 325,752,529.65
  5. Step 5: Solve for x
    x = 325,752,529.65/18,597.76
  6. Step 6: Final answer
    x = 17,515.69

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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.