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Finding the Fourth Proportional to 17,692.16, 26,486.40 and 12,408.96

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Solution

The fourth proportional to 17,692.16, 26,486.40 and 12,408.96 is: 18,577.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,692.16 : 26,486.40 = 12,408.96 : x
  2. Step 2: Convert to fraction form
    17,692.16/26,486.40 = 12,408.96/x
  3. Step 3: Cross multiply
    17,692.16x = 26,486.40 × 12,408.96
  4. Step 4: Simplify right side
    17,692.16x = 328,668,678.14
  5. Step 5: Solve for x
    x = 328,668,678.14/17,692.16
  6. Step 6: Final answer
    x = 18,577.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.