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Finding the Fourth Proportional to 8,692.30, 11,995.34 and 4,713.40

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Solution

The fourth proportional to 8,692.30, 11,995.34 and 4,713.40 is: 6,504.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,692.30 : 11,995.34 = 4,713.40 : x
  2. Step 2: Convert to fraction form
    8,692.30/11,995.34 = 4,713.40/x
  3. Step 3: Cross multiply
    8,692.30x = 11,995.34 × 4,713.40
  4. Step 4: Simplify right side
    8,692.30x = 56,538,835.56
  5. Step 5: Solve for x
    x = 56,538,835.56/8,692.30
  6. Step 6: Final answer
    x = 6,504.47

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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.