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Finding the Fourth Proportional to 72,958.38, 109,442.16 and 23,040.44

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Solution

The fourth proportional to 72,958.38, 109,442.16 and 23,040.44 is: 34,562.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,958.38 : 109,442.16 = 23,040.44 : x
  2. Step 2: Convert to fraction form
    72,958.38/109,442.16 = 23,040.44/x
  3. Step 3: Cross multiply
    72,958.38x = 109,442.16 × 23,040.44
  4. Step 4: Simplify right side
    72,958.38x = 2,521,595,520.95
  5. Step 5: Solve for x
    x = 2,521,595,520.95/72,958.38
  6. Step 6: Final answer
    x = 34,562.11

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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.