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Finding the Fourth Proportional to 17,438.88, 26,155.44 and 5,124

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Solution

The fourth proportional to 17,438.88, 26,155.44 and 5,124 is: 7,685.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,438.88 : 26,155.44 = 5,124 : x
  2. Step 2: Convert to fraction form
    17,438.88/26,155.44 = 5,124/x
  3. Step 3: Cross multiply
    17,438.88x = 26,155.44 × 5,124
  4. Step 4: Simplify right side
    17,438.88x = 134,020,474.56
  5. Step 5: Solve for x
    x = 134,020,474.56/17,438.88
  6. Step 6: Final answer
    x = 7,685.15

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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.