Home / 13,585.29-20,376.57-3,725.56

Finding the Fourth Proportional to 13,585.29, 20,376.57 and 3,725.56

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Solution

The fourth proportional to 13,585.29, 20,376.57 and 3,725.56 is: 5,587.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,585.29 : 20,376.57 = 3,725.56 : x
  2. Step 2: Convert to fraction form
    13,585.29/20,376.57 = 3,725.56/x
  3. Step 3: Cross multiply
    13,585.29x = 20,376.57 × 3,725.56
  4. Step 4: Simplify right side
    13,585.29x = 75,914,134.13
  5. Step 5: Solve for x
    x = 75,914,134.13/13,585.29
  6. Step 6: Final answer
    x = 5,587.97

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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.