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Finding the Fourth Proportional to 25,880.59, 35,714.03 and 15,825.79

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Solution

The fourth proportional to 25,880.59, 35,714.03 and 15,825.79 is: 21,838.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,880.59 : 35,714.03 = 15,825.79 : x
  2. Step 2: Convert to fraction form
    25,880.59/35,714.03 = 15,825.79/x
  3. Step 3: Cross multiply
    25,880.59x = 35,714.03 × 15,825.79
  4. Step 4: Simplify right side
    25,880.59x = 565,202,659.70
  5. Step 5: Solve for x
    x = 565,202,659.70/25,880.59
  6. Step 6: Final answer
    x = 21,838.86

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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.