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Finding the Fourth Proportional to 13,803.92, 20,709.24 and 4,443.98

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Solution

The fourth proportional to 13,803.92, 20,709.24 and 4,443.98 is: 6,667.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,803.92 : 20,709.24 = 4,443.98 : x
  2. Step 2: Convert to fraction form
    13,803.92/20,709.24 = 4,443.98/x
  3. Step 3: Cross multiply
    13,803.92x = 20,709.24 × 4,443.98
  4. Step 4: Simplify right side
    13,803.92x = 92,031,448.38
  5. Step 5: Solve for x
    x = 92,031,448.38/13,803.92
  6. Step 6: Final answer
    x = 6,667.05

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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.