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Finding the Fourth Proportional to 13,433.00, 20,050.90 and 12,443.38

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Solution

The fourth proportional to 13,433.00, 20,050.90 and 12,443.38 is: 18,573.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,433.00 : 20,050.90 = 12,443.38 : x
  2. Step 2: Convert to fraction form
    13,433.00/20,050.90 = 12,443.38/x
  3. Step 3: Cross multiply
    13,433.00x = 20,050.90 × 12,443.38
  4. Step 4: Simplify right side
    13,433.00x = 249,500,805.57
  5. Step 5: Solve for x
    x = 249,500,805.57/13,433.00
  6. Step 6: Final answer
    x = 18,573.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.