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Finding the Fourth Proportional to 27,489.52, 37,966.44 and 18,521.32

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Solution

The fourth proportional to 27,489.52, 37,966.44 and 18,521.32 is: 25,580.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,489.52 : 37,966.44 = 18,521.32 : x
  2. Step 2: Convert to fraction form
    27,489.52/37,966.44 = 18,521.32/x
  3. Step 3: Cross multiply
    27,489.52x = 37,966.44 × 18,521.32
  4. Step 4: Simplify right side
    27,489.52x = 703,188,584.50
  5. Step 5: Solve for x
    x = 703,188,584.50/27,489.52
  6. Step 6: Final answer
    x = 25,580.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.