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Finding the Fourth Proportional to 8,692.00, 11,995.20 and 4,915.73

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Solution

The fourth proportional to 8,692.00, 11,995.20 and 4,915.73 is: 6,783.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,692.00 : 11,995.20 = 4,915.73 : x
  2. Step 2: Convert to fraction form
    8,692.00/11,995.20 = 4,915.73/x
  3. Step 3: Cross multiply
    8,692.00x = 11,995.20 × 4,915.73
  4. Step 4: Simplify right side
    8,692.00x = 58,965,152.21
  5. Step 5: Solve for x
    x = 58,965,152.21/8,692.00
  6. Step 6: Final answer
    x = 6,783.84

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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.