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Finding the Fourth Proportional to 73,832.40, 110,737.80 and 21,236.40

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Solution

The fourth proportional to 73,832.40, 110,737.80 and 21,236.40 is: 31,851.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,832.40 : 110,737.80 = 21,236.40 : x
  2. Step 2: Convert to fraction form
    73,832.40/110,737.80 = 21,236.40/x
  3. Step 3: Cross multiply
    73,832.40x = 110,737.80 × 21,236.40
  4. Step 4: Simplify right side
    73,832.40x = 2,351,672,215.92
  5. Step 5: Solve for x
    x = 2,351,672,215.92/73,832.40
  6. Step 6: Final answer
    x = 31,851.49

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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.