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Finding the Fourth Proportional to 19,329.77, 28,991.01 and 6,849.29

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Solution

The fourth proportional to 19,329.77, 28,991.01 and 6,849.29 is: 10,272.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,329.77 : 28,991.01 = 6,849.29 : x
  2. Step 2: Convert to fraction form
    19,329.77/28,991.01 = 6,849.29/x
  3. Step 3: Cross multiply
    19,329.77x = 28,991.01 × 6,849.29
  4. Step 4: Simplify right side
    19,329.77x = 198,567,933.05
  5. Step 5: Solve for x
    x = 198,567,933.05/19,329.77
  6. Step 6: Final answer
    x = 10,272.65

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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.