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Finding the Fourth Proportional to 12,472.74, 18,692.88 and 5,068.50

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Solution

The fourth proportional to 12,472.74, 18,692.88 and 5,068.50 is: 7,596.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,472.74 : 18,692.88 = 5,068.50 : x
  2. Step 2: Convert to fraction form
    12,472.74/18,692.88 = 5,068.50/x
  3. Step 3: Cross multiply
    12,472.74x = 18,692.88 × 5,068.50
  4. Step 4: Simplify right side
    12,472.74x = 94,744,862.28
  5. Step 5: Solve for x
    x = 94,744,862.28/12,472.74
  6. Step 6: Final answer
    x = 7,596.15

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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.