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Finding the Fourth Proportional to 17,225.39, 25,813.78 and 7,361.21

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Solution

The fourth proportional to 17,225.39, 25,813.78 and 7,361.21 is: 11,031.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,225.39 : 25,813.78 = 7,361.21 : x
  2. Step 2: Convert to fraction form
    17,225.39/25,813.78 = 7,361.21/x
  3. Step 3: Cross multiply
    17,225.39x = 25,813.78 × 7,361.21
  4. Step 4: Simplify right side
    17,225.39x = 190,020,655.47
  5. Step 5: Solve for x
    x = 190,020,655.47/17,225.39
  6. Step 6: Final answer
    x = 11,031.43

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1.5x scale

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.