Home / 25,091.40-34,626.60-13,760.21

Finding the Fourth Proportional to 25,091.40, 34,626.60 and 13,760.21

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Solution

The fourth proportional to 25,091.40, 34,626.60 and 13,760.21 is: 18,989.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,091.40 : 34,626.60 = 13,760.21 : x
  2. Step 2: Convert to fraction form
    25,091.40/34,626.60 = 13,760.21/x
  3. Step 3: Cross multiply
    25,091.40x = 34,626.60 × 13,760.21
  4. Step 4: Simplify right side
    25,091.40x = 476,469,287.59
  5. Step 5: Solve for x
    x = 476,469,287.59/25,091.40
  6. Step 6: Final answer
    x = 18,989.35

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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.