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Finding the Fourth Proportional to 8,472.92, 11,692.21 and 4,696.05

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Solution

The fourth proportional to 8,472.92, 11,692.21 and 4,696.05 is: 6,480.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,472.92 : 11,692.21 = 4,696.05 : x
  2. Step 2: Convert to fraction form
    8,472.92/11,692.21 = 4,696.05/x
  3. Step 3: Cross multiply
    8,472.92x = 11,692.21 × 4,696.05
  4. Step 4: Simplify right side
    8,472.92x = 54,907,254.40
  5. Step 5: Solve for x
    x = 54,907,254.40/8,472.92
  6. Step 6: Final answer
    x = 6,480.32

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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.