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Finding the Fourth Proportional to 14,110.85, 21,147.71 and 7,873.80

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Solution

The fourth proportional to 14,110.85, 21,147.71 and 7,873.80 is: 11,800.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,110.85 : 21,147.71 = 7,873.80 : x
  2. Step 2: Convert to fraction form
    14,110.85/21,147.71 = 7,873.80/x
  3. Step 3: Cross multiply
    14,110.85x = 21,147.71 × 7,873.80
  4. Step 4: Simplify right side
    14,110.85x = 166,512,839.00
  5. Step 5: Solve for x
    x = 166,512,839.00/14,110.85
  6. Step 6: Final answer
    x = 11,800.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.