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Finding the Fourth Proportional to 8,867.76, 12,230.37 and 5,330.22

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Solution

The fourth proportional to 8,867.76, 12,230.37 and 5,330.22 is: 7,351.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,867.76 : 12,230.37 = 5,330.22 : x
  2. Step 2: Convert to fraction form
    8,867.76/12,230.37 = 5,330.22/x
  3. Step 3: Cross multiply
    8,867.76x = 12,230.37 × 5,330.22
  4. Step 4: Simplify right side
    8,867.76x = 65,190,562.78
  5. Step 5: Solve for x
    x = 65,190,562.78/8,867.76
  6. Step 6: Final answer
    x = 7,351.41

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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.