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Finding the Fourth Proportional to 5,407.99, 8,109.21 and 2,483.75

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Solution

The fourth proportional to 5,407.99, 8,109.21 and 2,483.75 is: 3,724.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,407.99 : 8,109.21 = 2,483.75 : x
  2. Step 2: Convert to fraction form
    5,407.99/8,109.21 = 2,483.75/x
  3. Step 3: Cross multiply
    5,407.99x = 8,109.21 × 2,483.75
  4. Step 4: Simplify right side
    5,407.99x = 20,141,250.34
  5. Step 5: Solve for x
    x = 20,141,250.34/5,407.99
  6. Step 6: Final answer
    x = 3,724.35

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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.