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Finding the Fourth Proportional to 22,666.80, 34,000.60 and 7,876.20

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Solution

The fourth proportional to 22,666.80, 34,000.60 and 7,876.20 is: 11,814.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,666.80 : 34,000.60 = 7,876.20 : x
  2. Step 2: Convert to fraction form
    22,666.80/34,000.60 = 7,876.20/x
  3. Step 3: Cross multiply
    22,666.80x = 34,000.60 × 7,876.20
  4. Step 4: Simplify right side
    22,666.80x = 267,795,525.72
  5. Step 5: Solve for x
    x = 267,795,525.72/22,666.80
  6. Step 6: Final answer
    x = 11,814.44

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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.