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Finding the Fourth Proportional to 28,134.67, 38,829.51 and 16,198.51

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Solution

The fourth proportional to 28,134.67, 38,829.51 and 16,198.51 is: 22,356.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,134.67 : 38,829.51 = 16,198.51 : x
  2. Step 2: Convert to fraction form
    28,134.67/38,829.51 = 16,198.51/x
  3. Step 3: Cross multiply
    28,134.67x = 38,829.51 × 16,198.51
  4. Step 4: Simplify right side
    28,134.67x = 628,980,206.03
  5. Step 5: Solve for x
    x = 628,980,206.03/28,134.67
  6. Step 6: Final answer
    x = 22,356.05

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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.