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Finding the Fourth Proportional to 17,361.44, 26,007.31 and 7,988.39

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Solution

The fourth proportional to 17,361.44, 26,007.31 and 7,988.39 is: 11,966.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,361.44 : 26,007.31 = 7,988.39 : x
  2. Step 2: Convert to fraction form
    17,361.44/26,007.31 = 7,988.39/x
  3. Step 3: Cross multiply
    17,361.44x = 26,007.31 × 7,988.39
  4. Step 4: Simplify right side
    17,361.44x = 207,756,535.13
  5. Step 5: Solve for x
    x = 207,756,535.13/17,361.44
  6. Step 6: Final answer
    x = 11,966.55

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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.