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Finding the Fourth Proportional to 52,474.81, 72,415.13 and 28,601.41

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Solution

The fourth proportional to 52,474.81, 72,415.13 and 28,601.41 is: 39,469.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,474.81 : 72,415.13 = 28,601.41 : x
  2. Step 2: Convert to fraction form
    52,474.81/72,415.13 = 28,601.41/x
  3. Step 3: Cross multiply
    52,474.81x = 72,415.13 × 28,601.41
  4. Step 4: Simplify right side
    52,474.81x = 2,071,174,823.33
  5. Step 5: Solve for x
    x = 2,071,174,823.33/52,474.81
  6. Step 6: Final answer
    x = 39,469.89

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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.