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Finding the Fourth Proportional to 28,773, 39,708.36 and 16,198.56

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Solution

The fourth proportional to 28,773, 39,708.36 and 16,198.56 is: 22,354.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,773 : 39,708.36 = 16,198.56 : x
  2. Step 2: Convert to fraction form
    28,773/39,708.36 = 16,198.56/x
  3. Step 3: Cross multiply
    28,773x = 39,708.36 × 16,198.56
  4. Step 4: Simplify right side
    28,773x = 643,218,251.96
  5. Step 5: Solve for x
    x = 643,218,251.96/28,773
  6. Step 6: Final answer
    x = 22,354.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.