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Finding the Fourth Proportional to 14,995.12, 20,692.20 and 8,708.08

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Solution

The fourth proportional to 14,995.12, 20,692.20 and 8,708.08 is: 12,016.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,995.12 : 20,692.20 = 8,708.08 : x
  2. Step 2: Convert to fraction form
    14,995.12/20,692.20 = 8,708.08/x
  3. Step 3: Cross multiply
    14,995.12x = 20,692.20 × 8,708.08
  4. Step 4: Simplify right side
    14,995.12x = 180,189,332.98
  5. Step 5: Solve for x
    x = 180,189,332.98/14,995.12
  6. Step 6: Final answer
    x = 12,016.53

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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.