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Finding the Fourth Proportional to 14,976.84, 20,667.77 and 8,263.11

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Solution

The fourth proportional to 14,976.84, 20,667.77 and 8,263.11 is: 11,402.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,976.84 : 20,667.77 = 8,263.11 : x
  2. Step 2: Convert to fraction form
    14,976.84/20,667.77 = 8,263.11/x
  3. Step 3: Cross multiply
    14,976.84x = 20,667.77 × 8,263.11
  4. Step 4: Simplify right side
    14,976.84x = 170,780,056.96
  5. Step 5: Solve for x
    x = 170,780,056.96/14,976.84
  6. Step 6: Final answer
    x = 11,402.94

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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.