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Finding the Fourth Proportional to 18,441.91, 27,638.16 and 17,260.93

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Solution

The fourth proportional to 18,441.91, 27,638.16 and 17,260.93 is: 25,868.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,441.91 : 27,638.16 = 17,260.93 : x
  2. Step 2: Convert to fraction form
    18,441.91/27,638.16 = 17,260.93/x
  3. Step 3: Cross multiply
    18,441.91x = 27,638.16 × 17,260.93
  4. Step 4: Simplify right side
    18,441.91x = 477,060,345.09
  5. Step 5: Solve for x
    x = 477,060,345.09/18,441.91
  6. Step 6: Final answer
    x = 25,868.27

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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.