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Finding the Fourth Proportional to 25,157.76, 37,736.60 and 6,689.76

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Solution

The fourth proportional to 25,157.76, 37,736.60 and 6,689.76 is: 10,034.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,157.76 : 37,736.60 = 6,689.76 : x
  2. Step 2: Convert to fraction form
    25,157.76/37,736.60 = 6,689.76/x
  3. Step 3: Cross multiply
    25,157.76x = 37,736.60 × 6,689.76
  4. Step 4: Simplify right side
    25,157.76x = 252,448,797.22
  5. Step 5: Solve for x
    x = 252,448,797.22/25,157.76
  6. Step 6: Final answer
    x = 10,034.63

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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.