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Finding the Fourth Proportional to 21,892.87, 32,842.95 and 7,098.73

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Solution

The fourth proportional to 21,892.87, 32,842.95 and 7,098.73 is: 10,649.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,892.87 : 32,842.95 = 7,098.73 : x
  2. Step 2: Convert to fraction form
    21,892.87/32,842.95 = 7,098.73/x
  3. Step 3: Cross multiply
    21,892.87x = 32,842.95 × 7,098.73
  4. Step 4: Simplify right side
    21,892.87x = 233,143,234.45
  5. Step 5: Solve for x
    x = 233,143,234.45/21,892.87
  6. Step 6: Final answer
    x = 10,649.28

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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.