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Finding the Fourth Proportional to 72,974.03, 109,431.74 and 35,523.18

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Solution

The fourth proportional to 72,974.03, 109,431.74 and 35,523.18 is: 53,270.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,974.03 : 109,431.74 = 35,523.18 : x
  2. Step 2: Convert to fraction form
    72,974.03/109,431.74 = 35,523.18/x
  3. Step 3: Cross multiply
    72,974.03x = 109,431.74 × 35,523.18
  4. Step 4: Simplify right side
    72,974.03x = 3,887,363,486.54
  5. Step 5: Solve for x
    x = 3,887,363,486.54/72,974.03
  6. Step 6: Final answer
    x = 53,270.51

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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.