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Finding the Fourth Proportional to 25,708.52, 38,562.74 and 7,240.52

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Solution

The fourth proportional to 25,708.52, 38,562.74 and 7,240.52 is: 10,860.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,708.52 : 38,562.74 = 7,240.52 : x
  2. Step 2: Convert to fraction form
    25,708.52/38,562.74 = 7,240.52/x
  3. Step 3: Cross multiply
    25,708.52x = 38,562.74 × 7,240.52
  4. Step 4: Simplify right side
    25,708.52x = 279,214,290.22
  5. Step 5: Solve for x
    x = 279,214,290.22/25,708.52
  6. Step 6: Final answer
    x = 10,860.77

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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.