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Finding the Fourth Proportional to 13,591.76, 20,361.08 and 9,365.04

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Solution

The fourth proportional to 13,591.76, 20,361.08 and 9,365.04 is: 14,029.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,591.76 : 20,361.08 = 9,365.04 : x
  2. Step 2: Convert to fraction form
    13,591.76/20,361.08 = 9,365.04/x
  3. Step 3: Cross multiply
    13,591.76x = 20,361.08 × 9,365.04
  4. Step 4: Simplify right side
    13,591.76x = 190,682,281.82
  5. Step 5: Solve for x
    x = 190,682,281.82/13,591.76
  6. Step 6: Final answer
    x = 14,029.26

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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.