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Finding the Fourth Proportional to 8,867.33, 12,236.87 and 5,090.90

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Solution

The fourth proportional to 8,867.33, 12,236.87 and 5,090.90 is: 7,025.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,867.33 : 12,236.87 = 5,090.90 : x
  2. Step 2: Convert to fraction form
    8,867.33/12,236.87 = 5,090.90/x
  3. Step 3: Cross multiply
    8,867.33x = 12,236.87 × 5,090.90
  4. Step 4: Simplify right side
    8,867.33x = 62,296,594.84
  5. Step 5: Solve for x
    x = 62,296,594.84/8,867.33
  6. Step 6: Final answer
    x = 7,025.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.