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Finding the Fourth Proportional to 17,891.76, 26,830.16 and 6,796.32

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Solution

The fourth proportional to 17,891.76, 26,830.16 and 6,796.32 is: 10,191.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,891.76 : 26,830.16 = 6,796.32 : x
  2. Step 2: Convert to fraction form
    17,891.76/26,830.16 = 6,796.32/x
  3. Step 3: Cross multiply
    17,891.76x = 26,830.16 × 6,796.32
  4. Step 4: Simplify right side
    17,891.76x = 182,346,353.01
  5. Step 5: Solve for x
    x = 182,346,353.01/17,891.76
  6. Step 6: Final answer
    x = 10,191.64

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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.