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Finding the Fourth Proportional to 18,746.82, 28,126.08 and 5,599.71

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Solution

The fourth proportional to 18,746.82, 28,126.08 and 5,599.71 is: 8,401.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,746.82 : 28,126.08 = 5,599.71 : x
  2. Step 2: Convert to fraction form
    18,746.82/28,126.08 = 5,599.71/x
  3. Step 3: Cross multiply
    18,746.82x = 28,126.08 × 5,599.71
  4. Step 4: Simplify right side
    18,746.82x = 157,497,891.44
  5. Step 5: Solve for x
    x = 157,497,891.44/18,746.82
  6. Step 6: Final answer
    x = 8,401.31

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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.