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Finding the Fourth Proportional to 17,921.76, 26,879.01 and 17,032.60

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Solution

The fourth proportional to 17,921.76, 26,879.01 and 17,032.60 is: 25,545.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,921.76 : 26,879.01 = 17,032.60 : x
  2. Step 2: Convert to fraction form
    17,921.76/26,879.01 = 17,032.60/x
  3. Step 3: Cross multiply
    17,921.76x = 26,879.01 × 17,032.60
  4. Step 4: Simplify right side
    17,921.76x = 457,819,425.73
  5. Step 5: Solve for x
    x = 457,819,425.73/17,921.76
  6. Step 6: Final answer
    x = 25,545.45

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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.