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Finding the Fourth Proportional to 5,930.68, 8,889.72 and 3,155.62

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Solution

The fourth proportional to 5,930.68, 8,889.72 and 3,155.62 is: 4,730.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,930.68 : 8,889.72 = 3,155.62 : x
  2. Step 2: Convert to fraction form
    5,930.68/8,889.72 = 3,155.62/x
  3. Step 3: Cross multiply
    5,930.68x = 8,889.72 × 3,155.62
  4. Step 4: Simplify right side
    5,930.68x = 28,052,578.23
  5. Step 5: Solve for x
    x = 28,052,578.23/5,930.68
  6. Step 6: Final answer
    x = 4,730.08

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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.