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Finding the Fourth Proportional to 45,817.84, 63,228.54 and 27,912.84

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Solution

The fourth proportional to 45,817.84, 63,228.54 and 27,912.84 is: 38,519.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,817.84 : 63,228.54 = 27,912.84 : x
  2. Step 2: Convert to fraction form
    45,817.84/63,228.54 = 27,912.84/x
  3. Step 3: Cross multiply
    45,817.84x = 63,228.54 × 27,912.84
  4. Step 4: Simplify right side
    45,817.84x = 1,764,888,120.45
  5. Step 5: Solve for x
    x = 1,764,888,120.45/45,817.84
  6. Step 6: Final answer
    x = 38,519.67

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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.