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Finding the Fourth Proportional to 17,505.25, 26,241.25 and 6,981.73

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Solution

The fourth proportional to 17,505.25, 26,241.25 and 6,981.73 is: 10,465.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,505.25 : 26,241.25 = 6,981.73 : x
  2. Step 2: Convert to fraction form
    17,505.25/26,241.25 = 6,981.73/x
  3. Step 3: Cross multiply
    17,505.25x = 26,241.25 × 6,981.73
  4. Step 4: Simplify right side
    17,505.25x = 183,209,322.36
  5. Step 5: Solve for x
    x = 183,209,322.36/17,505.25
  6. Step 6: Final answer
    x = 10,465.96

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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.