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Finding the Fourth Proportional to 14,726.50, 20,321.04 and 8,757.01

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Solution

The fourth proportional to 14,726.50, 20,321.04 and 8,757.01 is: 12,083.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,726.50 : 20,321.04 = 8,757.01 : x
  2. Step 2: Convert to fraction form
    14,726.50/20,321.04 = 8,757.01/x
  3. Step 3: Cross multiply
    14,726.50x = 20,321.04 × 8,757.01
  4. Step 4: Simplify right side
    14,726.50x = 177,951,550.49
  5. Step 5: Solve for x
    x = 177,951,550.49/14,726.50
  6. Step 6: Final answer
    x = 12,083.77

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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.