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Finding the Fourth Proportional to 17,969.87, 26,973.63 and 8,617.82

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Solution

The fourth proportional to 17,969.87, 26,973.63 and 8,617.82 is: 12,935.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,969.87 : 26,973.63 = 8,617.82 : x
  2. Step 2: Convert to fraction form
    17,969.87/26,973.63 = 8,617.82/x
  3. Step 3: Cross multiply
    17,969.87x = 26,973.63 × 8,617.82
  4. Step 4: Simplify right side
    17,969.87x = 232,453,753.22
  5. Step 5: Solve for x
    x = 232,453,753.22/17,969.87
  6. Step 6: Final answer
    x = 12,935.75

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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.