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Finding the Fourth Proportional to 55,753.70, 76,905.11 and 33,076.63

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Solution

The fourth proportional to 55,753.70, 76,905.11 and 33,076.63 is: 45,624.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,753.70 : 76,905.11 = 33,076.63 : x
  2. Step 2: Convert to fraction form
    55,753.70/76,905.11 = 33,076.63/x
  3. Step 3: Cross multiply
    55,753.70x = 76,905.11 × 33,076.63
  4. Step 4: Simplify right side
    55,753.70x = 2,543,762,178.23
  5. Step 5: Solve for x
    x = 2,543,762,178.23/55,753.70
  6. Step 6: Final answer
    x = 45,624.99

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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.