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Finding the Fourth Proportional to 17,339.08, 25,989.18 and 6,938.68

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Solution

The fourth proportional to 17,339.08, 25,989.18 and 6,938.68 is: 10,400.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,339.08 : 25,989.18 = 6,938.68 : x
  2. Step 2: Convert to fraction form
    17,339.08/25,989.18 = 6,938.68/x
  3. Step 3: Cross multiply
    17,339.08x = 25,989.18 × 6,938.68
  4. Step 4: Simplify right side
    17,339.08x = 180,330,603.48
  5. Step 5: Solve for x
    x = 180,330,603.48/17,339.08
  6. Step 6: Final answer
    x = 10,400.24

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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.