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Finding the Fourth Proportional to 18,557.96, 27,841.48 and 6,078.65

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Solution

The fourth proportional to 18,557.96, 27,841.48 and 6,078.65 is: 9,119.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,557.96 : 27,841.48 = 6,078.65 : x
  2. Step 2: Convert to fraction form
    18,557.96/27,841.48 = 6,078.65/x
  3. Step 3: Cross multiply
    18,557.96x = 27,841.48 × 6,078.65
  4. Step 4: Simplify right side
    18,557.96x = 169,238,458.00
  5. Step 5: Solve for x
    x = 169,238,458.00/18,557.96
  6. Step 6: Final answer
    x = 9,119.46

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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.