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Finding the Fourth Proportional to 52,930.45, 79,354.09 and 36,240

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Solution

The fourth proportional to 52,930.45, 79,354.09 and 36,240 is: 54,331.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,930.45 : 79,354.09 = 36,240 : x
  2. Step 2: Convert to fraction form
    52,930.45/79,354.09 = 36,240/x
  3. Step 3: Cross multiply
    52,930.45x = 79,354.09 × 36,240
  4. Step 4: Simplify right side
    52,930.45x = 2,875,792,221.60
  5. Step 5: Solve for x
    x = 2,875,792,221.60/52,930.45
  6. Step 6: Final answer
    x = 54,331.53

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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.