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Finding the Fourth Proportional to 14,966.87, 20,655.20 and 8,252.48

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Solution

The fourth proportional to 14,966.87, 20,655.20 and 8,252.48 is: 11,388.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,966.87 : 20,655.20 = 8,252.48 : x
  2. Step 2: Convert to fraction form
    14,966.87/20,655.20 = 8,252.48/x
  3. Step 3: Cross multiply
    14,966.87x = 20,655.20 × 8,252.48
  4. Step 4: Simplify right side
    14,966.87x = 170,456,624.90
  5. Step 5: Solve for x
    x = 170,456,624.90/14,966.87
  6. Step 6: Final answer
    x = 11,388.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.