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Finding the Fourth Proportional to 14,940.01, 20,625.80 and 9,911.05

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Solution

The fourth proportional to 14,940.01, 20,625.80 and 9,911.05 is: 13,682.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,940.01 : 20,625.80 = 9,911.05 : x
  2. Step 2: Convert to fraction form
    14,940.01/20,625.80 = 9,911.05/x
  3. Step 3: Cross multiply
    14,940.01x = 20,625.80 × 9,911.05
  4. Step 4: Simplify right side
    14,940.01x = 204,423,335.09
  5. Step 5: Solve for x
    x = 204,423,335.09/14,940.01
  6. Step 6: Final answer
    x = 13,682.94

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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.