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Finding the Fourth Proportional to 13,773.56, 20,661.71 and 4,411.23

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Solution

The fourth proportional to 13,773.56, 20,661.71 and 4,411.23 is: 6,617.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,773.56 : 20,661.71 = 4,411.23 : x
  2. Step 2: Convert to fraction form
    13,773.56/20,661.71 = 4,411.23/x
  3. Step 3: Cross multiply
    13,773.56x = 20,661.71 × 4,411.23
  4. Step 4: Simplify right side
    13,773.56x = 91,143,555.00
  5. Step 5: Solve for x
    x = 91,143,555.00/13,773.56
  6. Step 6: Final answer
    x = 6,617.28

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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.