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Finding the Fourth Proportional to 13,935.06, 20,904.44 and 7,361.51

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Solution

The fourth proportional to 13,935.06, 20,904.44 and 7,361.51 is: 11,043.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,935.06 : 20,904.44 = 7,361.51 : x
  2. Step 2: Convert to fraction form
    13,935.06/20,904.44 = 7,361.51/x
  3. Step 3: Cross multiply
    13,935.06x = 20,904.44 × 7,361.51
  4. Step 4: Simplify right side
    13,935.06x = 153,888,102.77
  5. Step 5: Solve for x
    x = 153,888,102.77/13,935.06
  6. Step 6: Final answer
    x = 11,043.23

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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.