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Finding the Fourth Proportional to 38,438.65, 57,660.02 and 36,335.03

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Solution

The fourth proportional to 38,438.65, 57,660.02 and 36,335.03 is: 54,504.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,438.65 : 57,660.02 = 36,335.03 : x
  2. Step 2: Convert to fraction form
    38,438.65/57,660.02 = 36,335.03/x
  3. Step 3: Cross multiply
    38,438.65x = 57,660.02 × 36,335.03
  4. Step 4: Simplify right side
    38,438.65x = 2,095,078,086.53
  5. Step 5: Solve for x
    x = 2,095,078,086.53/38,438.65
  6. Step 6: Final answer
    x = 54,504.47

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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.