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Finding the Fourth Proportional to 18,497.77, 27,750.81 and 5,351.16

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Solution

The fourth proportional to 18,497.77, 27,750.81 and 5,351.16 is: 8,027.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,497.77 : 27,750.81 = 5,351.16 : x
  2. Step 2: Convert to fraction form
    18,497.77/27,750.81 = 5,351.16/x
  3. Step 3: Cross multiply
    18,497.77x = 27,750.81 × 5,351.16
  4. Step 4: Simplify right side
    18,497.77x = 148,499,024.44
  5. Step 5: Solve for x
    x = 148,499,024.44/18,497.77
  6. Step 6: Final answer
    x = 8,027.94

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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.