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Finding the Fourth Proportional to 15,755.52, 23,647.84 and 7,969.76

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Solution

The fourth proportional to 15,755.52, 23,647.84 and 7,969.76 is: 11,962.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,755.52 : 23,647.84 = 7,969.76 : x
  2. Step 2: Convert to fraction form
    15,755.52/23,647.84 = 7,969.76/x
  3. Step 3: Cross multiply
    15,755.52x = 23,647.84 × 7,969.76
  4. Step 4: Simplify right side
    15,755.52x = 188,467,609.32
  5. Step 5: Solve for x
    x = 188,467,609.32/15,755.52
  6. Step 6: Final answer
    x = 11,962.01

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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.