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Finding the Fourth Proportional to 72,034.31, 108,028.11 and 23,990.13

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Solution

The fourth proportional to 72,034.31, 108,028.11 and 23,990.13 is: 35,977.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,034.31 : 108,028.11 = 23,990.13 : x
  2. Step 2: Convert to fraction form
    72,034.31/108,028.11 = 23,990.13/x
  3. Step 3: Cross multiply
    72,034.31x = 108,028.11 × 23,990.13
  4. Step 4: Simplify right side
    72,034.31x = 2,591,607,742.46
  5. Step 5: Solve for x
    x = 2,591,607,742.46/72,034.31
  6. Step 6: Final answer
    x = 35,977.41

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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.