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Finding the Fourth Proportional to 18,597.69, 27,890.61 and 6,114.83

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Solution

The fourth proportional to 18,597.69, 27,890.61 and 6,114.83 is: 9,170.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,597.69 : 27,890.61 = 6,114.83 : x
  2. Step 2: Convert to fraction form
    18,597.69/27,890.61 = 6,114.83/x
  3. Step 3: Cross multiply
    18,597.69x = 27,890.61 × 6,114.83
  4. Step 4: Simplify right side
    18,597.69x = 170,546,199.29
  5. Step 5: Solve for x
    x = 170,546,199.29/18,597.69
  6. Step 6: Final answer
    x = 9,170.29

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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.