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Finding the Fourth Proportional to 21,893.67, 32,845.12 and 7,101.43

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Solution

The fourth proportional to 21,893.67, 32,845.12 and 7,101.43 is: 10,653.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,893.67 : 32,845.12 = 7,101.43 : x
  2. Step 2: Convert to fraction form
    21,893.67/32,845.12 = 7,101.43/x
  3. Step 3: Cross multiply
    21,893.67x = 32,845.12 × 7,101.43
  4. Step 4: Simplify right side
    21,893.67x = 233,247,285.01
  5. Step 5: Solve for x
    x = 233,247,285.01/21,893.67
  6. Step 6: Final answer
    x = 10,653.64

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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.