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Finding the Fourth Proportional to 18,283.52, 27,388.74 and 8,409.26

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Solution

The fourth proportional to 18,283.52, 27,388.74 and 8,409.26 is: 12,597.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,283.52 : 27,388.74 = 8,409.26 : x
  2. Step 2: Convert to fraction form
    18,283.52/27,388.74 = 8,409.26/x
  3. Step 3: Cross multiply
    18,283.52x = 27,388.74 × 8,409.26
  4. Step 4: Simplify right side
    18,283.52x = 230,319,035.73
  5. Step 5: Solve for x
    x = 230,319,035.73/18,283.52
  6. Step 6: Final answer
    x = 12,597.08

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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.