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Finding the Fourth Proportional to 18,597.39, 27,830.88 and 13,338.33

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Solution

The fourth proportional to 18,597.39, 27,830.88 and 13,338.33 is: 19,960.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,597.39 : 27,830.88 = 13,338.33 : x
  2. Step 2: Convert to fraction form
    18,597.39/27,830.88 = 13,338.33/x
  3. Step 3: Cross multiply
    18,597.39x = 27,830.88 × 13,338.33
  4. Step 4: Simplify right side
    18,597.39x = 371,217,461.63
  5. Step 5: Solve for x
    x = 371,217,461.63/18,597.39
  6. Step 6: Final answer
    x = 19,960.73

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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.