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Finding the Fourth Proportional to 27,362.97, 37,760.20 and 15,426.20

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Solution

The fourth proportional to 27,362.97, 37,760.20 and 15,426.20 is: 21,287.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,362.97 : 37,760.20 = 15,426.20 : x
  2. Step 2: Convert to fraction form
    27,362.97/37,760.20 = 15,426.20/x
  3. Step 3: Cross multiply
    27,362.97x = 37,760.20 × 15,426.20
  4. Step 4: Simplify right side
    27,362.97x = 582,496,453.07
  5. Step 5: Solve for x
    x = 582,496,453.07/27,362.97
  6. Step 6: Final answer
    x = 21,287.76

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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.