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Finding the Fourth Proportional to 18,311.67, 27,466.00 and 5,831.19

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Solution

The fourth proportional to 18,311.67, 27,466.00 and 5,831.19 is: 8,746.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,311.67 : 27,466.00 = 5,831.19 : x
  2. Step 2: Convert to fraction form
    18,311.67/27,466.00 = 5,831.19/x
  3. Step 3: Cross multiply
    18,311.67x = 27,466.00 × 5,831.19
  4. Step 4: Simplify right side
    18,311.67x = 160,159,449.96
  5. Step 5: Solve for x
    x = 160,159,449.96/18,311.67
  6. Step 6: Final answer
    x = 8,746.30

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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.