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Finding the Fourth Proportional to 19,754.04, 27,278.87 and 12,692.87

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Solution

The fourth proportional to 19,754.04, 27,278.87 and 12,692.87 is: 17,527.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,754.04 : 27,278.87 = 12,692.87 : x
  2. Step 2: Convert to fraction form
    19,754.04/27,278.87 = 12,692.87/x
  3. Step 3: Cross multiply
    19,754.04x = 27,278.87 × 12,692.87
  4. Step 4: Simplify right side
    19,754.04x = 346,246,950.80
  5. Step 5: Solve for x
    x = 346,246,950.80/19,754.04
  6. Step 6: Final answer
    x = 17,527.91

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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.