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Finding the Fourth Proportional to 21,959.03, 32,939.45 and 6,376.65

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Solution

The fourth proportional to 21,959.03, 32,939.45 and 6,376.65 is: 9,565.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,959.03 : 32,939.45 = 6,376.65 : x
  2. Step 2: Convert to fraction form
    21,959.03/32,939.45 = 6,376.65/x
  3. Step 3: Cross multiply
    21,959.03x = 32,939.45 × 6,376.65
  4. Step 4: Simplify right side
    21,959.03x = 210,043,311.96
  5. Step 5: Solve for x
    x = 210,043,311.96/21,959.03
  6. Step 6: Final answer
    x = 9,565.24

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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.