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Finding the Fourth Proportional to 11,959.31, 17,938.23 and 4,461.42

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Solution

The fourth proportional to 11,959.31, 17,938.23 and 4,461.42 is: 6,691.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,959.31 : 17,938.23 = 4,461.42 : x
  2. Step 2: Convert to fraction form
    11,959.31/17,938.23 = 4,461.42/x
  3. Step 3: Cross multiply
    11,959.31x = 17,938.23 × 4,461.42
  4. Step 4: Simplify right side
    11,959.31x = 80,030,045.35
  5. Step 5: Solve for x
    x = 80,030,045.35/11,959.31
  6. Step 6: Final answer
    x = 6,691.86

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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.