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Finding the Fourth Proportional to 5,390.76, 8,086.14 and 3,201.33

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Solution

The fourth proportional to 5,390.76, 8,086.14 and 3,201.33 is: 4,802.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.76 : 8,086.14 = 3,201.33 : x
  2. Step 2: Convert to fraction form
    5,390.76/8,086.14 = 3,201.33/x
  3. Step 3: Cross multiply
    5,390.76x = 8,086.14 × 3,201.33
  4. Step 4: Simplify right side
    5,390.76x = 25,886,402.57
  5. Step 5: Solve for x
    x = 25,886,402.57/5,390.76
  6. Step 6: Final answer
    x = 4,802.00

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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.