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Finding the Fourth Proportional to 20,595.92, 30,850.13 and 13,936.50

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Solution

The fourth proportional to 20,595.92, 30,850.13 and 13,936.50 is: 20,875.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,595.92 : 30,850.13 = 13,936.50 : x
  2. Step 2: Convert to fraction form
    20,595.92/30,850.13 = 13,936.50/x
  3. Step 3: Cross multiply
    20,595.92x = 30,850.13 × 13,936.50
  4. Step 4: Simplify right side
    20,595.92x = 429,942,767.06
  5. Step 5: Solve for x
    x = 429,942,767.06/20,595.92
  6. Step 6: Final answer
    x = 20,875.15

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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.