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Finding the Fourth Proportional to 69,303.65, 95,638.57 and 39,089.23

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Solution

The fourth proportional to 69,303.65, 95,638.57 and 39,089.23 is: 53,942.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,303.65 : 95,638.57 = 39,089.23 : x
  2. Step 2: Convert to fraction form
    69,303.65/95,638.57 = 39,089.23/x
  3. Step 3: Cross multiply
    69,303.65x = 95,638.57 × 39,089.23
  4. Step 4: Simplify right side
    69,303.65x = 3,738,438,480.63
  5. Step 5: Solve for x
    x = 3,738,438,480.63/69,303.65
  6. Step 6: Final answer
    x = 53,942.88

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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.