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Finding the Fourth Proportional to 21,892.31, 32,843.07 and 7,100.07

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Solution

The fourth proportional to 21,892.31, 32,843.07 and 7,100.07 is: 10,651.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,892.31 : 32,843.07 = 7,100.07 : x
  2. Step 2: Convert to fraction form
    21,892.31/32,843.07 = 7,100.07/x
  3. Step 3: Cross multiply
    21,892.31x = 32,843.07 × 7,100.07
  4. Step 4: Simplify right side
    21,892.31x = 233,188,054.96
  5. Step 5: Solve for x
    x = 233,188,054.96/21,892.31
  6. Step 6: Final answer
    x = 10,651.60

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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.