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Finding the Fourth Proportional to 19,994.97, 27,536.94 and 19,558.98

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Solution

The fourth proportional to 19,994.97, 27,536.94 and 19,558.98 is: 26,936.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,994.97 : 27,536.94 = 19,558.98 : x
  2. Step 2: Convert to fraction form
    19,994.97/27,536.94 = 19,558.98/x
  3. Step 3: Cross multiply
    19,994.97x = 27,536.94 × 19,558.98
  4. Step 4: Simplify right side
    19,994.97x = 538,594,458.72
  5. Step 5: Solve for x
    x = 538,594,458.72/19,994.97
  6. Step 6: Final answer
    x = 26,936.50

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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.