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Finding the Fourth Proportional to 18,593.39, 27,890.14 and 13,071.44

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Solution

The fourth proportional to 18,593.39, 27,890.14 and 13,071.44 is: 19,607.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,593.39 : 27,890.14 = 13,071.44 : x
  2. Step 2: Convert to fraction form
    18,593.39/27,890.14 = 13,071.44/x
  3. Step 3: Cross multiply
    18,593.39x = 27,890.14 × 13,071.44
  4. Step 4: Simplify right side
    18,593.39x = 364,564,291.60
  5. Step 5: Solve for x
    x = 364,564,291.60/18,593.39
  6. Step 6: Final answer
    x = 19,607.20

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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.