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Finding the Fourth Proportional to 14,968.11, 20,655.54 and 8,253.73

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Solution

The fourth proportional to 14,968.11, 20,655.54 and 8,253.73 is: 11,389.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,968.11 : 20,655.54 = 8,253.73 : x
  2. Step 2: Convert to fraction form
    14,968.11/20,655.54 = 8,253.73/x
  3. Step 3: Cross multiply
    14,968.11x = 20,655.54 × 8,253.73
  4. Step 4: Simplify right side
    14,968.11x = 170,485,250.16
  5. Step 5: Solve for x
    x = 170,485,250.16/14,968.11
  6. Step 6: Final answer
    x = 11,389.90

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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.