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Finding the Fourth Proportional to 17,316.54, 25,979.64 and 7,959.42

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Solution

The fourth proportional to 17,316.54, 25,979.64 and 7,959.42 is: 11,941.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,316.54 : 25,979.64 = 7,959.42 : x
  2. Step 2: Convert to fraction form
    17,316.54/25,979.64 = 7,959.42/x
  3. Step 3: Cross multiply
    17,316.54x = 25,979.64 × 7,959.42
  4. Step 4: Simplify right side
    17,316.54x = 206,782,866.21
  5. Step 5: Solve for x
    x = 206,782,866.21/17,316.54
  6. Step 6: Final answer
    x = 11,941.35

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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.