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Finding the Fourth Proportional to 19,692.63, 27,175.71 and 10,740.09

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Solution

The fourth proportional to 19,692.63, 27,175.71 and 10,740.09 is: 14,821.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,692.63 : 27,175.71 = 10,740.09 : x
  2. Step 2: Convert to fraction form
    19,692.63/27,175.71 = 10,740.09/x
  3. Step 3: Cross multiply
    19,692.63x = 27,175.71 × 10,740.09
  4. Step 4: Simplify right side
    19,692.63x = 291,869,571.21
  5. Step 5: Solve for x
    x = 291,869,571.21/19,692.63
  6. Step 6: Final answer
    x = 14,821.26

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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.