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Finding the Fourth Proportional to 13,966.92, 20,952.54 and 8,697.87

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Solution

The fourth proportional to 13,966.92, 20,952.54 and 8,697.87 is: 13,048.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,966.92 : 20,952.54 = 8,697.87 : x
  2. Step 2: Convert to fraction form
    13,966.92/20,952.54 = 8,697.87/x
  3. Step 3: Cross multiply
    13,966.92x = 20,952.54 × 8,697.87
  4. Step 4: Simplify right side
    13,966.92x = 182,242,469.09
  5. Step 5: Solve for x
    x = 182,242,469.09/13,966.92
  6. Step 6: Final answer
    x = 13,048.15

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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.