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Finding the Fourth Proportional to 17,955.25, 26,935.79 and 5,306.29

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Solution

The fourth proportional to 17,955.25, 26,935.79 and 5,306.29 is: 7,960.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,955.25 : 26,935.79 = 5,306.29 : x
  2. Step 2: Convert to fraction form
    17,955.25/26,935.79 = 5,306.29/x
  3. Step 3: Cross multiply
    17,955.25x = 26,935.79 × 5,306.29
  4. Step 4: Simplify right side
    17,955.25x = 142,929,113.12
  5. Step 5: Solve for x
    x = 142,929,113.12/17,955.25
  6. Step 6: Final answer
    x = 7,960.30

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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.