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Finding the Fourth Proportional to 53,278.97, 79,912.98 and 33,497.55

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Solution

The fourth proportional to 53,278.97, 79,912.98 and 33,497.55 is: 50,242.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,278.97 : 79,912.98 = 33,497.55 : x
  2. Step 2: Convert to fraction form
    53,278.97/79,912.98 = 33,497.55/x
  3. Step 3: Cross multiply
    53,278.97x = 79,912.98 × 33,497.55
  4. Step 4: Simplify right side
    53,278.97x = 2,676,889,043.20
  5. Step 5: Solve for x
    x = 2,676,889,043.20/53,278.97
  6. Step 6: Final answer
    x = 50,242.89

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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.