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Finding the Fourth Proportional to 25,124, 34,674.32 and 15,188

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Solution

The fourth proportional to 25,124, 34,674.32 and 15,188 is: 20,961.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,124 : 34,674.32 = 15,188 : x
  2. Step 2: Convert to fraction form
    25,124/34,674.32 = 15,188/x
  3. Step 3: Cross multiply
    25,124x = 34,674.32 × 15,188
  4. Step 4: Simplify right side
    25,124x = 526,633,572.16
  5. Step 5: Solve for x
    x = 526,633,572.16/25,124
  6. Step 6: Final answer
    x = 20,961.37

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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.