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Finding the Fourth Proportional to 13,361.36, 18,437.54 and 7,393.04

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Solution

The fourth proportional to 13,361.36, 18,437.54 and 7,393.04 is: 10,201.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,361.36 : 18,437.54 = 7,393.04 : x
  2. Step 2: Convert to fraction form
    13,361.36/18,437.54 = 7,393.04/x
  3. Step 3: Cross multiply
    13,361.36x = 18,437.54 × 7,393.04
  4. Step 4: Simplify right side
    13,361.36x = 136,309,470.72
  5. Step 5: Solve for x
    x = 136,309,470.72/13,361.36
  6. Step 6: Final answer
    x = 10,201.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.