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Finding the Fourth Proportional to 14,697.45, 20,282.42 and 7,983.02

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Solution

The fourth proportional to 14,697.45, 20,282.42 and 7,983.02 is: 11,016.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,697.45 : 20,282.42 = 7,983.02 : x
  2. Step 2: Convert to fraction form
    14,697.45/20,282.42 = 7,983.02/x
  3. Step 3: Cross multiply
    14,697.45x = 20,282.42 × 7,983.02
  4. Step 4: Simplify right side
    14,697.45x = 161,915,035.17
  5. Step 5: Solve for x
    x = 161,915,035.17/14,697.45
  6. Step 6: Final answer
    x = 11,016.54

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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.