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Finding the Fourth Proportional to 15,755.44, 23,631.72 and 4,811.44

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Solution

The fourth proportional to 15,755.44, 23,631.72 and 4,811.44 is: 7,216.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,755.44 : 23,631.72 = 4,811.44 : x
  2. Step 2: Convert to fraction form
    15,755.44/23,631.72 = 4,811.44/x
  3. Step 3: Cross multiply
    15,755.44x = 23,631.72 × 4,811.44
  4. Step 4: Simplify right side
    15,755.44x = 113,702,602.88
  5. Step 5: Solve for x
    x = 113,702,602.88/15,755.44
  6. Step 6: Final answer
    x = 7,216.72

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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.