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Finding the Fourth Proportional to 14,553.39, 21,830.20 and 7,975.99

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Solution

The fourth proportional to 14,553.39, 21,830.20 and 7,975.99 is: 11,964.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,553.39 : 21,830.20 = 7,975.99 : x
  2. Step 2: Convert to fraction form
    14,553.39/21,830.20 = 7,975.99/x
  3. Step 3: Cross multiply
    14,553.39x = 21,830.20 × 7,975.99
  4. Step 4: Simplify right side
    14,553.39x = 174,117,456.90
  5. Step 5: Solve for x
    x = 174,117,456.90/14,553.39
  6. Step 6: Final answer
    x = 11,964.05

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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.