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Finding the Fourth Proportional to 14,687.01, 20,267.49 and 7,972.41

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Solution

The fourth proportional to 14,687.01, 20,267.49 and 7,972.41 is: 11,001.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,687.01 : 20,267.49 = 7,972.41 : x
  2. Step 2: Convert to fraction form
    14,687.01/20,267.49 = 7,972.41/x
  3. Step 3: Cross multiply
    14,687.01x = 20,267.49 × 7,972.41
  4. Step 4: Simplify right side
    14,687.01x = 161,580,739.95
  5. Step 5: Solve for x
    x = 161,580,739.95/14,687.01
  6. Step 6: Final answer
    x = 11,001.61

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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.