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Finding the Fourth Proportional to 35,773.92, 53,661.02 and 12,400.43

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Solution

The fourth proportional to 35,773.92, 53,661.02 and 12,400.43 is: 18,600.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,773.92 : 53,661.02 = 12,400.43 : x
  2. Step 2: Convert to fraction form
    35,773.92/53,661.02 = 12,400.43/x
  3. Step 3: Cross multiply
    35,773.92x = 53,661.02 × 12,400.43
  4. Step 4: Simplify right side
    35,773.92x = 665,419,391.93
  5. Step 5: Solve for x
    x = 665,419,391.93/35,773.92
  6. Step 6: Final answer
    x = 18,600.68

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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.