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Finding the Fourth Proportional to 12,794.63, 17,656.73 and 7,205.63

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Solution

The fourth proportional to 12,794.63, 17,656.73 and 7,205.63 is: 9,943.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,794.63 : 17,656.73 = 7,205.63 : x
  2. Step 2: Convert to fraction form
    12,794.63/17,656.73 = 7,205.63/x
  3. Step 3: Cross multiply
    12,794.63x = 17,656.73 × 7,205.63
  4. Step 4: Simplify right side
    12,794.63x = 127,227,739.08
  5. Step 5: Solve for x
    x = 127,227,739.08/12,794.63
  6. Step 6: Final answer
    x = 9,943.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.