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Finding the Fourth Proportional to 10,954.56, 15,127.92 and 9,373.44

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Solution

The fourth proportional to 10,954.56, 15,127.92 and 9,373.44 is: 12,944.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,954.56 : 15,127.92 = 9,373.44 : x
  2. Step 2: Convert to fraction form
    10,954.56/15,127.92 = 9,373.44/x
  3. Step 3: Cross multiply
    10,954.56x = 15,127.92 × 9,373.44
  4. Step 4: Simplify right side
    10,954.56x = 141,800,650.44
  5. Step 5: Solve for x
    x = 141,800,650.44/10,954.56
  6. Step 6: Final answer
    x = 12,944.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.