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Finding the Fourth Proportional to 23,083.80, 34,633.80 and 9,940.20

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Solution

The fourth proportional to 23,083.80, 34,633.80 and 9,940.20 is: 14,913.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,083.80 : 34,633.80 = 9,940.20 : x
  2. Step 2: Convert to fraction form
    23,083.80/34,633.80 = 9,940.20/x
  3. Step 3: Cross multiply
    23,083.80x = 34,633.80 × 9,940.20
  4. Step 4: Simplify right side
    23,083.80x = 344,266,898.76
  5. Step 5: Solve for x
    x = 344,266,898.76/23,083.80
  6. Step 6: Final answer
    x = 14,913.79

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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.