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Finding the Fourth Proportional to 14,976.94, 20,667.45 and 8,262.94

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Solution

The fourth proportional to 14,976.94, 20,667.45 and 8,262.94 is: 11,402.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,976.94 : 20,667.45 = 8,262.94 : x
  2. Step 2: Convert to fraction form
    14,976.94/20,667.45 = 8,262.94/x
  3. Step 3: Cross multiply
    14,976.94x = 20,667.45 × 8,262.94
  4. Step 4: Simplify right side
    14,976.94x = 170,773,899.30
  5. Step 5: Solve for x
    x = 170,773,899.30/14,976.94
  6. Step 6: Final answer
    x = 11,402.46

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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.