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Finding the Fourth Proportional to 27,980.20, 41,931.90 and 22,796.20

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Solution

The fourth proportional to 27,980.20, 41,931.90 and 22,796.20 is: 34,163.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,980.20 : 41,931.90 = 22,796.20 : x
  2. Step 2: Convert to fraction form
    27,980.20/41,931.90 = 22,796.20/x
  3. Step 3: Cross multiply
    27,980.20x = 41,931.90 × 22,796.20
  4. Step 4: Simplify right side
    27,980.20x = 955,887,978.78
  5. Step 5: Solve for x
    x = 955,887,978.78/27,980.20
  6. Step 6: Final answer
    x = 34,163.01

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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.