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Finding the Fourth Proportional to 18,597.90, 27,896.90 and 13,075.95

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Solution

The fourth proportional to 18,597.90, 27,896.90 and 13,075.95 is: 19,613.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,597.90 : 27,896.90 = 13,075.95 : x
  2. Step 2: Convert to fraction form
    18,597.90/27,896.90 = 13,075.95/x
  3. Step 3: Cross multiply
    18,597.90x = 27,896.90 × 13,075.95
  4. Step 4: Simplify right side
    18,597.90x = 364,778,469.56
  5. Step 5: Solve for x
    x = 364,778,469.56/18,597.90
  6. Step 6: Final answer
    x = 19,613.96

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Similar ratio
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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.