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Finding the Fourth Proportional to 21,744.59, 32,631.48 and 7,893.59

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Solution

The fourth proportional to 21,744.59, 32,631.48 and 7,893.59 is: 11,845.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,744.59 : 32,631.48 = 7,893.59 : x
  2. Step 2: Convert to fraction form
    21,744.59/32,631.48 = 7,893.59/x
  3. Step 3: Cross multiply
    21,744.59x = 32,631.48 × 7,893.59
  4. Step 4: Simplify right side
    21,744.59x = 257,579,361.06
  5. Step 5: Solve for x
    x = 257,579,361.06/21,744.59
  6. Step 6: Final answer
    x = 11,845.68

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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.