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Finding the Fourth Proportional to 12,794.93, 17,652.31 and 7,755.51

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Solution

The fourth proportional to 12,794.93, 17,652.31 and 7,755.51 is: 10,699.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,794.93 : 17,652.31 = 7,755.51 : x
  2. Step 2: Convert to fraction form
    12,794.93/17,652.31 = 7,755.51/x
  3. Step 3: Cross multiply
    12,794.93x = 17,652.31 × 7,755.51
  4. Step 4: Simplify right side
    12,794.93x = 136,902,666.73
  5. Step 5: Solve for x
    x = 136,902,666.73/12,794.93
  6. Step 6: Final answer
    x = 10,699.76

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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.