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Finding the Fourth Proportional to 18,100.92, 27,134.34 and 9,768.45

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Solution

The fourth proportional to 18,100.92, 27,134.34 and 9,768.45 is: 14,643.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,100.92 : 27,134.34 = 9,768.45 : x
  2. Step 2: Convert to fraction form
    18,100.92/27,134.34 = 9,768.45/x
  3. Step 3: Cross multiply
    18,100.92x = 27,134.34 × 9,768.45
  4. Step 4: Simplify right side
    18,100.92x = 265,060,443.57
  5. Step 5: Solve for x
    x = 265,060,443.57/18,100.92
  6. Step 6: Final answer
    x = 14,643.48

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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.