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Finding the Fourth Proportional to 51,384.73, 70,905.22 and 29,028.73

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Solution

The fourth proportional to 51,384.73, 70,905.22 and 29,028.73 is: 40,056.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,384.73 : 70,905.22 = 29,028.73 : x
  2. Step 2: Convert to fraction form
    51,384.73/70,905.22 = 29,028.73/x
  3. Step 3: Cross multiply
    51,384.73x = 70,905.22 × 29,028.73
  4. Step 4: Simplify right side
    51,384.73x = 2,058,288,486.97
  5. Step 5: Solve for x
    x = 2,058,288,486.97/51,384.73
  6. Step 6: Final answer
    x = 40,056.42

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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.