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Finding the Fourth Proportional to 15,951.71, 23,903.31 and 7,620.26

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Solution

The fourth proportional to 15,951.71, 23,903.31 and 7,620.26 is: 11,418.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,951.71 : 23,903.31 = 7,620.26 : x
  2. Step 2: Convert to fraction form
    15,951.71/23,903.31 = 7,620.26/x
  3. Step 3: Cross multiply
    15,951.71x = 23,903.31 × 7,620.26
  4. Step 4: Simplify right side
    15,951.71x = 182,149,346.12
  5. Step 5: Solve for x
    x = 182,149,346.12/15,951.71
  6. Step 6: Final answer
    x = 11,418.80

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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.