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Finding the Fourth Proportional to 21,959.34, 32,942.25 and 6,374.94

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Solution

The fourth proportional to 21,959.34, 32,942.25 and 6,374.94 is: 9,563.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,959.34 : 32,942.25 = 6,374.94 : x
  2. Step 2: Convert to fraction form
    21,959.34/32,942.25 = 6,374.94/x
  3. Step 3: Cross multiply
    21,959.34x = 32,942.25 × 6,374.94
  4. Step 4: Simplify right side
    21,959.34x = 210,004,867.22
  5. Step 5: Solve for x
    x = 210,004,867.22/21,959.34
  6. Step 6: Final answer
    x = 9,563.35

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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.