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Finding the Fourth Proportional to 34,751.80, 47,957.52 and 18,836.20

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Solution

The fourth proportional to 34,751.80, 47,957.52 and 18,836.20 is: 25,993.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,751.80 : 47,957.52 = 18,836.20 : x
  2. Step 2: Convert to fraction form
    34,751.80/47,957.52 = 18,836.20/x
  3. Step 3: Cross multiply
    34,751.80x = 47,957.52 × 18,836.20
  4. Step 4: Simplify right side
    34,751.80x = 903,337,438.22
  5. Step 5: Solve for x
    x = 903,337,438.22/34,751.80
  6. Step 6: Final answer
    x = 25,993.98

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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.