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Finding the Fourth Proportional to 13,472.56, 20,210.46 and 6,896.98

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Solution

The fourth proportional to 13,472.56, 20,210.46 and 6,896.98 is: 10,346.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,472.56 : 20,210.46 = 6,896.98 : x
  2. Step 2: Convert to fraction form
    13,472.56/20,210.46 = 6,896.98/x
  3. Step 3: Cross multiply
    13,472.56x = 20,210.46 × 6,896.98
  4. Step 4: Simplify right side
    13,472.56x = 139,391,138.41
  5. Step 5: Solve for x
    x = 139,391,138.41/13,472.56
  6. Step 6: Final answer
    x = 10,346.30

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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.