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Finding the Fourth Proportional to 17,906.47, 26,852.31 and 7,775.51

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Solution

The fourth proportional to 17,906.47, 26,852.31 and 7,775.51 is: 11,660.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,906.47 : 26,852.31 = 7,775.51 : x
  2. Step 2: Convert to fraction form
    17,906.47/26,852.31 = 7,775.51/x
  3. Step 3: Cross multiply
    17,906.47x = 26,852.31 × 7,775.51
  4. Step 4: Simplify right side
    17,906.47x = 208,790,357.24
  5. Step 5: Solve for x
    x = 208,790,357.24/17,906.47
  6. Step 6: Final answer
    x = 11,660.05

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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.