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Finding the Fourth Proportional to 17,989.63, 26,982.34 and 4,840.97

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Solution

The fourth proportional to 17,989.63, 26,982.34 and 4,840.97 is: 7,260.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,989.63 : 26,982.34 = 4,840.97 : x
  2. Step 2: Convert to fraction form
    17,989.63/26,982.34 = 4,840.97/x
  3. Step 3: Cross multiply
    17,989.63x = 26,982.34 × 4,840.97
  4. Step 4: Simplify right side
    17,989.63x = 130,620,551.46
  5. Step 5: Solve for x
    x = 130,620,551.46/17,989.63
  6. Step 6: Final answer
    x = 7,260.88

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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.