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Finding the Fourth Proportional to 21,892.16, 32,817.11 and 7,091.03

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Solution

The fourth proportional to 21,892.16, 32,817.11 and 7,091.03 is: 10,629.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,892.16 : 32,817.11 = 7,091.03 : x
  2. Step 2: Convert to fraction form
    21,892.16/32,817.11 = 7,091.03/x
  3. Step 3: Cross multiply
    21,892.16x = 32,817.11 × 7,091.03
  4. Step 4: Simplify right side
    21,892.16x = 232,706,911.98
  5. Step 5: Solve for x
    x = 232,706,911.98/21,892.16
  6. Step 6: Final answer
    x = 10,629.69

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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.