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Finding the Fourth Proportional to 8,692.53, 13,039.80 and 3,148.48

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Solution

The fourth proportional to 8,692.53, 13,039.80 and 3,148.48 is: 4,723.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,692.53 : 13,039.80 = 3,148.48 : x
  2. Step 2: Convert to fraction form
    8,692.53/13,039.80 = 3,148.48/x
  3. Step 3: Cross multiply
    8,692.53x = 13,039.80 × 3,148.48
  4. Step 4: Simplify right side
    8,692.53x = 41,055,549.50
  5. Step 5: Solve for x
    x = 41,055,549.50/8,692.53
  6. Step 6: Final answer
    x = 4,723.08

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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.