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Finding the Fourth Proportional to 19,857.44, 27,582.92 and 19,539.92

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Solution

The fourth proportional to 19,857.44, 27,582.92 and 19,539.92 is: 27,141.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,857.44 : 27,582.92 = 19,539.92 : x
  2. Step 2: Convert to fraction form
    19,857.44/27,582.92 = 19,539.92/x
  3. Step 3: Cross multiply
    19,857.44x = 27,582.92 × 19,539.92
  4. Step 4: Simplify right side
    19,857.44x = 538,968,050.17
  5. Step 5: Solve for x
    x = 538,968,050.17/19,857.44
  6. Step 6: Final answer
    x = 27,141.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.