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Finding the Fourth Proportional to 17,425.76, 26,138.62 and 5,742.32

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Solution

The fourth proportional to 17,425.76, 26,138.62 and 5,742.32 is: 8,613.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,425.76 : 26,138.62 = 5,742.32 : x
  2. Step 2: Convert to fraction form
    17,425.76/26,138.62 = 5,742.32/x
  3. Step 3: Cross multiply
    17,425.76x = 26,138.62 × 5,742.32
  4. Step 4: Simplify right side
    17,425.76x = 150,096,320.40
  5. Step 5: Solve for x
    x = 150,096,320.40/17,425.76
  6. Step 6: Final answer
    x = 8,613.47

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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.