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Finding the Fourth Proportional to 22,692.03, 31,311.19 and 12,619.13

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Solution

The fourth proportional to 22,692.03, 31,311.19 and 12,619.13 is: 17,412.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,692.03 : 31,311.19 = 12,619.13 : x
  2. Step 2: Convert to fraction form
    22,692.03/31,311.19 = 12,619.13/x
  3. Step 3: Cross multiply
    22,692.03x = 31,311.19 × 12,619.13
  4. Step 4: Simplify right side
    22,692.03x = 395,119,836.28
  5. Step 5: Solve for x
    x = 395,119,836.28/22,692.03
  6. Step 6: Final answer
    x = 17,412.28

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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.