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Finding the Fourth Proportional to 18,221.68, 24,963.81 and 17,539.12

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Solution

The fourth proportional to 18,221.68, 24,963.81 and 17,539.12 is: 24,028.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,221.68 : 24,963.81 = 17,539.12 : x
  2. Step 2: Convert to fraction form
    18,221.68/24,963.81 = 17,539.12/x
  3. Step 3: Cross multiply
    18,221.68x = 24,963.81 × 17,539.12
  4. Step 4: Simplify right side
    18,221.68x = 437,843,259.25
  5. Step 5: Solve for x
    x = 437,843,259.25/18,221.68
  6. Step 6: Final answer
    x = 24,028.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.