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Finding the Fourth Proportional to 18,583.74, 27,889.27 and 12,341.68

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Solution

The fourth proportional to 18,583.74, 27,889.27 and 12,341.68 is: 18,521.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,583.74 : 27,889.27 = 12,341.68 : x
  2. Step 2: Convert to fraction form
    18,583.74/27,889.27 = 12,341.68/x
  3. Step 3: Cross multiply
    18,583.74x = 27,889.27 × 12,341.68
  4. Step 4: Simplify right side
    18,583.74x = 344,200,445.77
  5. Step 5: Solve for x
    x = 344,200,445.77/18,583.74
  6. Step 6: Final answer
    x = 18,521.59

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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.