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Finding the Fourth Proportional to 12,362.76, 18,542.70 and 4,966.92

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Solution

The fourth proportional to 12,362.76, 18,542.70 and 4,966.92 is: 7,449.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,362.76 : 18,542.70 = 4,966.92 : x
  2. Step 2: Convert to fraction form
    12,362.76/18,542.70 = 4,966.92/x
  3. Step 3: Cross multiply
    12,362.76x = 18,542.70 × 4,966.92
  4. Step 4: Simplify right side
    12,362.76x = 92,100,107.48
  5. Step 5: Solve for x
    x = 92,100,107.48/12,362.76
  6. Step 6: Final answer
    x = 7,449.80

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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.