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Finding the Fourth Proportional to 72,164.63, 108,247.08 and 27,812.27

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Solution

The fourth proportional to 72,164.63, 108,247.08 and 27,812.27 is: 41,718.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,164.63 : 108,247.08 = 27,812.27 : x
  2. Step 2: Convert to fraction form
    72,164.63/108,247.08 = 27,812.27/x
  3. Step 3: Cross multiply
    72,164.63x = 108,247.08 × 27,812.27
  4. Step 4: Simplify right side
    72,164.63x = 3,010,597,015.67
  5. Step 5: Solve for x
    x = 3,010,597,015.67/72,164.63
  6. Step 6: Final answer
    x = 41,718.46

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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.