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Finding the Fourth Proportional to 25,685.52, 38,527.72 and 11,834.52

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Solution

The fourth proportional to 25,685.52, 38,527.72 and 11,834.52 is: 17,751.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,685.52 : 38,527.72 = 11,834.52 : x
  2. Step 2: Convert to fraction form
    25,685.52/38,527.72 = 11,834.52/x
  3. Step 3: Cross multiply
    25,685.52x = 38,527.72 × 11,834.52
  4. Step 4: Simplify right side
    25,685.52x = 455,957,072.89
  5. Step 5: Solve for x
    x = 455,957,072.89/25,685.52
  6. Step 6: Final answer
    x = 17,751.52

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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.