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Finding the Fourth Proportional to 28,983.15, 43,481.34 and 9,261.63

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Solution

The fourth proportional to 28,983.15, 43,481.34 and 9,261.63 is: 13,894.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,983.15 : 43,481.34 = 9,261.63 : x
  2. Step 2: Convert to fraction form
    28,983.15/43,481.34 = 9,261.63/x
  3. Step 3: Cross multiply
    28,983.15x = 43,481.34 × 9,261.63
  4. Step 4: Simplify right side
    28,983.15x = 402,708,082.98
  5. Step 5: Solve for x
    x = 402,708,082.98/28,983.15
  6. Step 6: Final answer
    x = 13,894.56

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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.