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Finding the Fourth Proportional to 27,390.56, 37,764.72 and 22,859.76

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Solution

The fourth proportional to 27,390.56, 37,764.72 and 22,859.76 is: 31,517.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,390.56 : 37,764.72 = 22,859.76 : x
  2. Step 2: Convert to fraction form
    27,390.56/37,764.72 = 22,859.76/x
  3. Step 3: Cross multiply
    27,390.56x = 37,764.72 × 22,859.76
  4. Step 4: Simplify right side
    27,390.56x = 863,292,435.67
  5. Step 5: Solve for x
    x = 863,292,435.67/27,390.56
  6. Step 6: Final answer
    x = 31,517.88

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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.