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Finding the Fourth Proportional to 5,673.50, 8,511.15 and 2,387.53

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Solution

The fourth proportional to 5,673.50, 8,511.15 and 2,387.53 is: 3,581.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,673.50 : 8,511.15 = 2,387.53 : x
  2. Step 2: Convert to fraction form
    5,673.50/8,511.15 = 2,387.53/x
  3. Step 3: Cross multiply
    5,673.50x = 8,511.15 × 2,387.53
  4. Step 4: Simplify right side
    5,673.50x = 20,320,625.96
  5. Step 5: Solve for x
    x = 20,320,625.96/5,673.50
  6. Step 6: Final answer
    x = 3,581.67

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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.