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Finding the Fourth Proportional to 14,993, 20,692.17 and 8,705.38

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Solution

The fourth proportional to 14,993, 20,692.17 and 8,705.38 is: 12,014.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,993 : 20,692.17 = 8,705.38 : x
  2. Step 2: Convert to fraction form
    14,993/20,692.17 = 8,705.38/x
  3. Step 3: Cross multiply
    14,993x = 20,692.17 × 8,705.38
  4. Step 4: Simplify right side
    14,993x = 180,133,055.89
  5. Step 5: Solve for x
    x = 180,133,055.89/14,993
  6. Step 6: Final answer
    x = 12,014.48

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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.