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Finding the Fourth Proportional to 12,363.87, 18,548.12 and 4,968.90

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Solution

The fourth proportional to 12,363.87, 18,548.12 and 4,968.90 is: 7,454.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,363.87 : 18,548.12 = 4,968.90 : x
  2. Step 2: Convert to fraction form
    12,363.87/18,548.12 = 4,968.90/x
  3. Step 3: Cross multiply
    12,363.87x = 18,548.12 × 4,968.90
  4. Step 4: Simplify right side
    12,363.87x = 92,163,753.47
  5. Step 5: Solve for x
    x = 92,163,753.47/12,363.87
  6. Step 6: Final answer
    x = 7,454.28

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1.5x scale

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.