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Finding the Fourth Proportional to 17,911.24, 26,866.82 and 4,763.62

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Solution

The fourth proportional to 17,911.24, 26,866.82 and 4,763.62 is: 7,145.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,911.24 : 26,866.82 = 4,763.62 : x
  2. Step 2: Convert to fraction form
    17,911.24/26,866.82 = 4,763.62/x
  3. Step 3: Cross multiply
    17,911.24x = 26,866.82 × 4,763.62
  4. Step 4: Simplify right side
    17,911.24x = 127,983,366.58
  5. Step 5: Solve for x
    x = 127,983,366.58/17,911.24
  6. Step 6: Final answer
    x = 7,145.42

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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.