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Finding the Fourth Proportional to 28,039.69, 38,685.00 and 17,973.68

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Solution

The fourth proportional to 28,039.69, 38,685.00 and 17,973.68 is: 24,797.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,039.69 : 38,685.00 = 17,973.68 : x
  2. Step 2: Convert to fraction form
    28,039.69/38,685.00 = 17,973.68/x
  3. Step 3: Cross multiply
    28,039.69x = 38,685.00 × 17,973.68
  4. Step 4: Simplify right side
    28,039.69x = 695,311,720.93
  5. Step 5: Solve for x
    x = 695,311,720.93/28,039.69
  6. Step 6: Final answer
    x = 24,797.42

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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.