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Finding the Fourth Proportional to 8,692.91, 13,045.30 and 4,800.05

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Solution

The fourth proportional to 8,692.91, 13,045.30 and 4,800.05 is: 7,203.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,692.91 : 13,045.30 = 4,800.05 : x
  2. Step 2: Convert to fraction form
    8,692.91/13,045.30 = 4,800.05/x
  3. Step 3: Cross multiply
    8,692.91x = 13,045.30 × 4,800.05
  4. Step 4: Simplify right side
    8,692.91x = 62,618,003.04
  5. Step 5: Solve for x
    x = 62,618,003.04/8,692.91
  6. Step 6: Final answer
    x = 7,203.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.