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Finding the Fourth Proportional to 20,059.68, 27,685.62 and 19,173.82

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Solution

The fourth proportional to 20,059.68, 27,685.62 and 19,173.82 is: 26,462.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,059.68 : 27,685.62 = 19,173.82 : x
  2. Step 2: Convert to fraction form
    20,059.68/27,685.62 = 19,173.82/x
  3. Step 3: Cross multiply
    20,059.68x = 27,685.62 × 19,173.82
  4. Step 4: Simplify right side
    20,059.68x = 530,839,094.47
  5. Step 5: Solve for x
    x = 530,839,094.47/20,059.68
  6. Step 6: Final answer
    x = 26,462.99

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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.