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Finding the Fourth Proportional to 17,328.22, 25,970.80 and 7,958.30

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Solution

The fourth proportional to 17,328.22, 25,970.80 and 7,958.30 is: 11,927.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,328.22 : 25,970.80 = 7,958.30 : x
  2. Step 2: Convert to fraction form
    17,328.22/25,970.80 = 7,958.30/x
  3. Step 3: Cross multiply
    17,328.22x = 25,970.80 × 7,958.30
  4. Step 4: Simplify right side
    17,328.22x = 206,683,417.64
  5. Step 5: Solve for x
    x = 206,683,417.64/17,328.22
  6. Step 6: Final answer
    x = 11,927.56

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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.