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Finding the Fourth Proportional to 15,751.97, 23,616.36 and 7,427.28

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Solution

The fourth proportional to 15,751.97, 23,616.36 and 7,427.28 is: 11,135.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,751.97 : 23,616.36 = 7,427.28 : x
  2. Step 2: Convert to fraction form
    15,751.97/23,616.36 = 7,427.28/x
  3. Step 3: Cross multiply
    15,751.97x = 23,616.36 × 7,427.28
  4. Step 4: Simplify right side
    15,751.97x = 175,405,318.30
  5. Step 5: Solve for x
    x = 175,405,318.30/15,751.97
  6. Step 6: Final answer
    x = 11,135.46

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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.