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Finding the Fourth Proportional to 19,792.94, 29,692.65 and 9,401.18

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Solution

The fourth proportional to 19,792.94, 29,692.65 and 9,401.18 is: 14,103.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,792.94 : 29,692.65 = 9,401.18 : x
  2. Step 2: Convert to fraction form
    19,792.94/29,692.65 = 9,401.18/x
  3. Step 3: Cross multiply
    19,792.94x = 29,692.65 × 9,401.18
  4. Step 4: Simplify right side
    19,792.94x = 279,145,947.33
  5. Step 5: Solve for x
    x = 279,145,947.33/19,792.94
  6. Step 6: Final answer
    x = 14,103.31

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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.