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Finding the Fourth Proportional to 25,812.88, 35,624.12 and 15,741.88

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Solution

The fourth proportional to 25,812.88, 35,624.12 and 15,741.88 is: 21,725.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,812.88 : 35,624.12 = 15,741.88 : x
  2. Step 2: Convert to fraction form
    25,812.88/35,624.12 = 15,741.88/x
  3. Step 3: Cross multiply
    25,812.88x = 35,624.12 × 15,741.88
  4. Step 4: Simplify right side
    25,812.88x = 560,790,622.15
  5. Step 5: Solve for x
    x = 560,790,622.15/25,812.88
  6. Step 6: Final answer
    x = 21,725.22

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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.