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Finding the Fourth Proportional to 17,816.12, 26,724.36 and 7,955.90

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Solution

The fourth proportional to 17,816.12, 26,724.36 and 7,955.90 is: 11,933.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,816.12 : 26,724.36 = 7,955.90 : x
  2. Step 2: Convert to fraction form
    17,816.12/26,724.36 = 7,955.90/x
  3. Step 3: Cross multiply
    17,816.12x = 26,724.36 × 7,955.90
  4. Step 4: Simplify right side
    17,816.12x = 212,616,335.72
  5. Step 5: Solve for x
    x = 212,616,335.72/17,816.12
  6. Step 6: Final answer
    x = 11,933.93

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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.