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Finding the Fourth Proportional to 33,347.55, 46,025.78 and 21,425.79

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Solution

The fourth proportional to 33,347.55, 46,025.78 and 21,425.79 is: 29,571.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,347.55 : 46,025.78 = 21,425.79 : x
  2. Step 2: Convert to fraction form
    33,347.55/46,025.78 = 21,425.79/x
  3. Step 3: Cross multiply
    33,347.55x = 46,025.78 × 21,425.79
  4. Step 4: Simplify right side
    33,347.55x = 986,138,589.74
  5. Step 5: Solve for x
    x = 986,138,589.74/33,347.55
  6. Step 6: Final answer
    x = 29,571.55

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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.