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Finding the Fourth Proportional to 21,884.60, 32,814.90 and 10,766.84

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Solution

The fourth proportional to 21,884.60, 32,814.90 and 10,766.84 is: 16,144.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,884.60 : 32,814.90 = 10,766.84 : x
  2. Step 2: Convert to fraction form
    21,884.60/32,814.90 = 10,766.84/x
  3. Step 3: Cross multiply
    21,884.60x = 32,814.90 × 10,766.84
  4. Step 4: Simplify right side
    21,884.60x = 353,312,777.92
  5. Step 5: Solve for x
    x = 353,312,777.92/21,884.60
  6. Step 6: Final answer
    x = 16,144.36

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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.