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Finding the Fourth Proportional to 13,353.05, 20,012.05 and 9,826.54

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Solution

The fourth proportional to 13,353.05, 20,012.05 and 9,826.54 is: 14,726.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,353.05 : 20,012.05 = 9,826.54 : x
  2. Step 2: Convert to fraction form
    13,353.05/20,012.05 = 9,826.54/x
  3. Step 3: Cross multiply
    13,353.05x = 20,012.05 × 9,826.54
  4. Step 4: Simplify right side
    13,353.05x = 196,649,209.81
  5. Step 5: Solve for x
    x = 196,649,209.81/13,353.05
  6. Step 6: Final answer
    x = 14,726.91

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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.