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Finding the Fourth Proportional to 21,754.95, 32,636.51 and 6,959.90

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Solution

The fourth proportional to 21,754.95, 32,636.51 and 6,959.90 is: 10,441.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,754.95 : 32,636.51 = 6,959.90 : x
  2. Step 2: Convert to fraction form
    21,754.95/32,636.51 = 6,959.90/x
  3. Step 3: Cross multiply
    21,754.95x = 32,636.51 × 6,959.90
  4. Step 4: Simplify right side
    21,754.95x = 227,146,845.95
  5. Step 5: Solve for x
    x = 227,146,845.95/21,754.95
  6. Step 6: Final answer
    x = 10,441.16

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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.