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Finding the Fourth Proportional to 28,773.83, 39,700.94 and 16,198.58

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Solution

The fourth proportional to 28,773.83, 39,700.94 and 16,198.58 is: 22,350.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,773.83 : 39,700.94 = 16,198.58 : x
  2. Step 2: Convert to fraction form
    28,773.83/39,700.94 = 16,198.58/x
  3. Step 3: Cross multiply
    28,773.83x = 39,700.94 × 16,198.58
  4. Step 4: Simplify right side
    28,773.83x = 643,098,870.92
  5. Step 5: Solve for x
    x = 643,098,870.92/28,773.83
  6. Step 6: Final answer
    x = 22,350.13

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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.